In our hot, humid climate, we really struggle with keeping most cultivars of Caryopteris x clandonensis alive for very long. A lovely exception in our trials has been Caryopteris ‘Gold Crest’, a recent introduction from the plant breeders at Ball Hort. Here is our three year old clump in the garden this week. The foliage is deliciously fragrant…more so than any other caryopteris we’ve ever grown, and the native bees find it incredibly attractive. We’ll be adding this to the new Plant Delights catalog in January. Winter hardiness is Zone 6a-9b.
With the trend green mulch (i.e. groundcovers), we continue to trial a number of new introductions that fit the bill. One of the top performers continues to be Sedum ellacombeanum ‘Cutting Edge’ PP 28,926. This 2016 Brent Horvath introduction has thrived in both sun and light shade, making a perfect ground-hugging mat. Despite being a top performer, sales were miserable when we offered it a few years ago. We’re not sure why it sold so poorly, but we now have some lovely drifts in the garden.
We always look forward to elephant ear evaluation day at JLBG, which was recently completed.
Each year, Colocasia breeder, Dr. John Cho flies in from Hawaii to study and select from our field trials of his new hybrids. This year we were joined by Robert Bett, owner of the California-based plant marketing firm, PlantHaven, who handles the Royal Hawaiian elephant ear program. The JLBG trials consist of all named colocasia introductions growing alongside Dr. Cho’s new hybrids created the year prior.
JLBG staff members, Jeremy Schmidt and Zac Hill spent most of the morning working with Robert and John on the time-consuming evaluation process.
After lunch, Jim Putnam from Proven Winners, joined us to see which remaining plants struck his fancy for potential introduction into their branded program. As you can see, lots of amazing plants didn’t make the final cut, which is necessary, since we’ll need more room for the new selections.
Plants selected for introduction are then sent to a tissue culture lab to be produced for the next step, which is grower/retailer trials. If these are successful, and the plant can be multiplied well in the lab, the plants are scheduled for retail introduction.
Hopefully, by now, most folks are familiar with our 2020 top selection, Colocasia ‘Waikiki’, which hit the market this year. There are more really exciting new selections in the pipeline, but we can’t share photos of those quite yet…stay tuned.
Looking particularly lovely in the late summer garden is Fatsia japonica ‘Murakumo Nishiki’. This irregularly gold variegated form of the typically solid green tree ivy is a star in the light shade garden. This evergreen gem is a great way to add a spot of color in the woodland garden year round. Hardiness is Zone 7b-10b.
One of our favorite evergreen shrubs is the queen of the variegated boxwoods, Buxus sempervirens ‘Elegantissima’. This plants thrives in part sun to light shade, where it looks great every month of the year. This excellent clone, which has been grown in Europe since the mid-1800s, matures at 5-6′ in height. Not only is it great in the garden, but if you have enough, you can cut some to use as a foliage filler in flower arrangements.
We’ve long been fascinated by Amorphophallus konjac ‘Shattered Glass’, an unstable variegated cultivar, developed by plantsman Michael Marcotrigiano. Some years, the foliage emerges solid green, other years with a small bit of sectoral variegation, and this year with a fully variegated leaf.
I’m more and more impressed with Hosta ‘Miss America’ each year. Not only is this white-centered hosta amazingly vigorous, but it has one of the finest floral shows we’ve ever seen on a hosta. The steel rod-like upright flower stalks on our plant have reached 4′ tall, but as the plant grows larger, they will eventually top 6′ in height. Not wind, rain, or post office vehicle can knock down these super sturdy stalks, and the great show they provide for weeks. Our plant is 100′ from our back porch, and it shows up like a floral beacon even from that distance.
One of our favorite broadleaf shrubs is undoubtedly Orixa japonica ‘Pearl Frost’. Orixa is a monotypic (one species) genus in the citrus (Rutaceae) family, that’s virtually unknown in US gardens.
We are particularly enamored with this superb variegated form, brought into the US by plantsman Barry Yinger. Orixa ‘Pearl Frost’ matures at 8′ tall x 6′ wide, and we have found it to thrive in both full sun to light shade, although full sun plants require more moisture.
Here’s a fun textural image from the woodland garden, featuring Hydrangea quercifolia ‘Little Honey’, Farfugium japonicum ‘Aureomaculatum’, and Athyrium ‘Ocean’s Fury’. Off to the left side are three more ferns, Dryopteris x celsa, Adiantum capillus-veneris, and Ctenitis subglandulosa.
We love the spineless Agave bracteosa ‘Stingray’ in the garden. We’ve had these dotted throughout the garden since 2017, and so far, with good drainage, they’ve handled our winters quite well, which is certainly not normal for a variegated century plant. This particular species prefers part sun to light shade. Hardiness is Zone 7b/8a and warmer.
Here’s a photo this week of one of our favorite North American native plants, Juniperus horizontalis ‘Copper Harbor’. This would certainly add significant year round color interest to any native plant garden. In our trials, this is far and away the best of the golden Juniperus horizontalis cultivars. We offered this selection for a couple of years, but there seemed to be little interest.
Looking lovely today is the amazing Agave x romanii ‘Shadow Dancer’. This fascinating agave is a manmade hybrid between two Mexican species, Agave filifera and Agave mitis. Not only is it a hybrid, but this selection has a fascinating variegation pattern that’s not seen on any other century plant. The new growth emerges ghostly cream with a muted green border. As the leaves age, they green disappears and the leaves become pure parchment white. Despite the seeming lack of chlorophyll, Agave ‘Shadow Dancer’ has amazingly good vigor and doesn’t burn in full sun. This has potential winter hardiness for Zones 8b and south, but needs more trialing to know for sure. In other climates, it’s a great container specimen.
This spring, one of our flats of Rohdea japonica seedlings turned up with an inordinate number of variegated seedlings. In a flat of approximately 1,000 seedlings, we typically expect 3 – 10 variegated offspring, when the parent plant has white streaking in the middle of the leaf (L2 layer).
All of the variegated seedlings were removed and potted individually last week…all 300 of them. It will be fascinating to see what unique forms result.
We ran across this fascinating reticulated leaf form of the US native (every state east of the Mississippi) groundcover partridge berry (Mitchella repens) last week, when tromping through the woods near JLBG. We’ve taken a few cuttings that will be evaluated here for garden performance. In 60 years of botanizing, this is the first form we’ve seen with this nicely patterned foliage.
Here’s a garden shot at JLBG, using a good bit of gold foliage in addition to flowers. Left to right: Viburnum dentatum ‘Golden Arrow’, Sinningia ‘Amethyst Tears’, Baptisia ‘White Gold’, Canna ‘Tama Tulipa’, Lysimachia nummularia ‘Aurea’ (groundcover), Hibiscus ‘Holy Grail’ (purple), Spirea thunbergii ‘Ogon’, Trachycarpus fortunei (palms).
Ever since I saw my first dragon’s-eye pine over 40 years ago, I was smitten, and throughout the years have been fortunate to collect several different named cultivars with this unique trait where the new needles emerge bicolor white and green. Here is our young specimen of Pinus densiflorus ‘Burke’s Red Variegated’ looking lovely in the gardens this week. This selection of the Japanese red pine, originated as a seedling from Long Island’s Joe Burke, from the cultivar Pinus densiflorus ‘Occulis Draconis’. Hardiness is Zone 5-8.
Below are two variations on a theme…calla lilies in the garden. Here is Zone 7b, both are reliably winter hardy in the ground.
The striped-leaf selection of the winter-blooming South African native, Zantedeschia aethiopica ‘African Gold’ has looked fabulous all spring, where we have it planted in a seep, which gets full sun for 3-4 hours in the morning.
Zantedeschia ‘Picasso’ is a hybrid, created using several of the summer-flowering South African native calla lily species. Here it is in our garden in mid-June, where it gets 4-6 hours of sun daily, and the soil stays reasonably moist.
The lovely native witch hazel, Hamamelis virginiana ‘Little Prospect‘ with its variegated foliage, looks amazing even when it isn’t in flower. The leaves show no foliar burn in full sun and it is just as beautiful in part shade. Hardiness Zone: 3a to 8b.
Here are a few of the many buckeyes that are looking good at JLBG this spring.
Aesculus pavia is native from Illinois south to Texas and east to Florida. Hardiness is Zone 4-8.
The European Aesculus hippocastanum has thrived for us, despite most sources claiming we are too hot in the summer. Aesculus ‘Hampton Court Gold’ emerges with ghostly yellow foliage for an amazing spring show.
Aesculus x carnea is a hybrid of the European Aesculus hippocastanum and the American Aesculus pavia. This cross was first discovered in Europe in 1812. It is quite stunning in our garden as you can see. Hardiness is Zone 5-8.
The dwarf form of Aesculus glabra only occurs in a small region of Northern Alabama/Georgia. Mature size is 5-6′ tall. Hardiness is Zone 5-9.
Aesculus sylvatica is one of our oldest buckeye specimens in the garden. This species is native from Virginia to Alabama. Hardiness is Zone 6b-8b.
Aesculus sylvatica ‘Sylvan Glow’ is Jeremy Schmidt’s discovery of an amazing seedling of Aesculus sylvatica that emerges rosy red, then changes to orange, before aging to green for the summer. When it gets a bit larger, we will try to propagate this so we can share.
Here are some of our favorite Japanese maples looking quite lovely in the garden this week, starting with Acer palmatum ‘Geisha Gone Wild’. This Buchholz Nursery introduction is a fascinating sport of Acer palmatum ‘Geisha’.
The leaf color of Acer palmatum ‘Tsuma Gaki’ has to be seen to be believed.
Our favorite of the weeping cutleaf purple cultivars is Acer palmatum ‘Orangeola’. Our specimen is now 27 years old.
Even when the sun isn’t out, the golden willow, Salix sachalinensis ‘Golden Sunshine’ provides a bright spot in the garden. We love this amazing tree. I see quite a few sources who list this on-line as maturing at 18′ tall x 7′ wide. Well, that’s not quite accurate. The five year old specimen pictured below is now 25′ tall x 25′ wide. Growth is much faster in moist, rich soils, but it seems someone needs to trade in their tape measure.
Solomon’s Seals comprise several genera of woody perennials, but the common name is most commonly associated with the genus, Polygonatum in the Asparagus family. It seems hard to imagine, but the Asparagus family now includes many popular garden plants including its namesake Asaparagus, but also hosta, agave, liriope, ruscus, and yucca.
The genus Polygonatum is native through much of the world, although the center of distribution is in Asia. We’ve been collecting these amazing woodland perennials for years, and now have a collection of over 380 different taxa. Here are a few from this week in the garden.
Polygonatum mengtzense is a dwarf, rarely cultivated species from North Vietnam.
The dwarf, glossy-leaf Chinese Polygonatum nodosum just oozes elegance.
When you run out of species to grow, you start creating hybrids. This is our new selection of a cross of the giant Polygonatum martinii and the more compact, Polygonatum falcatum. We’ve named this clone Polygonatum x marcatum ‘Winsome Wonder’
Polygonatum odoratum ‘Chanticleer’ is a superb, large-leaf form of the Asian Polygonatum odoratum that I spied at Chanticleer Gardens, and they kindly shared in 2006. Hopefully, we’ll finally have enough to share next year.
Polygonatum odoratum ‘Angel Wings’ (aka: ‘Carlisle) is a superb form of Polygonatum odoratum from Massachusetts plantsman, Roy Herold. This gem grows in both half day sun as well as shade.
Over the last few weeks, I’ve been working on a plant survey of a local woodland area of about 30 acres. The low, moist areas are filled with Arisaema triphyllum, (Jack-in-the-pulpit) which is quite common in our area. The first image is what is typical for the species.
I’ve been studying patches of Jack-in-the-pulpit for well over 55 years, always looking for unusual leaf forms that showed any type of patterning. Until last month, I’d never found a single form with atypical foliage. That all changed with my first trip to this local site, where so far, I have found several dozen forms with silver leaf vein patterns. Up until now, there are only two pattern leaf forms of Arisaema triphyllum in cultivation, Arisaema ‘Mrs. French’ and Arisaema ‘Starburst’.
Each patterned leaf clone varies slightly as you would expect within a population including both green and purple stalk coloration.
While I’d never found any true variegation prior to this, I had found plenty of transient leaf patterning caused by Jack-in-the-pulpit rust (Uromyces ari triphylli). This site was no exception, with a number of plants showing the characteristic patterning. If you find these, turn the leaf upside down and you’ll see the small orange rust pustules.
While these may seem exciting, the pattern are not genetic and will disappear without the fungus. Fortunately, this rust can be cured by cutting off the top of the plant and discarding it where the spores can not spread via the wind. Infected plant should be fine, albeit smaller next year. The susceptibility of Arisaema triphyllum to jack-in-the-pulpit rust varies with genetics. Of the tens of thousands of plants I observed at the site, less than 10% were infected with the rust.
Arum are a fascinating genus of hardy aroids, known by most gardeners from a single southern European species, Arum italicum. The most popular cultivar of Arum italicum is Arum ‘Marmoratum’. The key to enjoying arums is to not let the seed drop everywhere, since you can get easily get over-arumed. Flowering season is now, followed by seed season. Each seedling has a different pattern from the original, so it’s a personal preference whether to remove seed or not.
Arum apulum is a little-know species that is rarely seen in cultivation, native only to a small region of Southern Italy. Our flowering plants in the garden now are from a wild collection made by a plant explorer friend.
Below is an interesting hybrid between Arum italicum (central to southern continental Europe) and Arum dioscorides (Mediterranean). Arum italicum has patterned leaves, but solid green flowers. Arum dioscoridis has solid green leaves and spotted flowers. The hybrid, Arum ‘Chui’ is an introduction from UK plantsman John Grimshaw. We added the notospecific (hybrid) name Arum x diotalicum. These hybrids have both spotted/speckled leaves and flowers.
Carex conica ‘Hime’ has been in horticultural commerce for many decades, and remains a superb woodland garden sedge. The evergreen species Carex conica is native throughout Japan, where it occurs in woodland conditions. This variegated selection that goes by an array of names such as ‘Snowline’ and ‘Marginata’, but Carex conica ‘Hime’, which translates to “princess” seems to the the correct cultivar name. The tight 10″ tall x 20″ wide clumps of narrow white-edged leaves are topped with this fascinating floral show for us in early March. In 35 years of growing this, we have yet to see a single garden seedling.
Trillium cuneatum ‘Oconee Gold’ is a rare gold-flowered selection of the typically purple-flowered southeastern toadshade. We found our original plant of this in Oconee County, SC, and have propagated them from seed since that time. If we keep the yellow-flowered plants isolated from purple-flowering clones, we have more than 50% that reproduce with yellow flowers. The time from seed to flower is usually five years. Winter hardiness is Zone 5a-8b.
Podocarpus macrophyllus ‘Okina’ is looking lovely this winter. This Japanese selection has resided at the base of a large pine tree at JLBG since 2001. We love the white speckled foilage, which really shines in the winter months. Podocarpus macrophyllus is one of a short list of conifers that thrives in the shade of a woodland garden. Our 20 year old plant is now 6′ tall. Hardiness is Zone 7b-10b.
We treasure any plant that makes a great woodland groundcover, and are particularly smitten with the ophiopgon (mondo grass) and liriope (monkey grass) selections. We currently grow over 120 different ophiopogon accesions including quite a number of wild collections, at JLBG…see what a touch of OCD does for you. We’ve grown Ophiopogon ‘Comet’ since 1997, and love it for its white striped foliage and well-behaved growth habit. Hardiness is Zone 7b-10b.
I borrowed the title from our good friend Jim Dodson’s book for this post about Ulmus parviflora ‘Golden Rey’. One of the most admired trees in our garden is our specimen of Gold-leaf lacebark elm. The bark, as you can see below is absolutely fabulous both in winter and summer.
The problem is that lacebark elm is a notorious seed producer, and in our garden, it seems like every one germinates. Our love/hate relationship with this species has so far resulted in the removal of four different mature cultivars from our garden so far.
Here’s where genetic engineering (GE) could actually help. Notice, we are using the term GE, as compared to the incorrectly used GMO. All, plants, unless they come directly from the wild, are genetically modified organisms (GMO). Humans would cease to exist as we know them without GMO’s, so, please try to use the correct terminology. What people are crusading against in food crops is actually genetic engineering (GE). Hoping down now from my soapbox.
It’s actually quite easy to sterilize a plant, using one of the genetic engineering tools known as CRISPR. Just think of this GE surgery as a horticultural vascectomy…a couple of snips and you’re done making babies. It will be interesting to see if public sentiment for non-edible crops allows genetic engineers to solve such problems with making some amazing plants like the widely planted lacebark elm more palatable to gardeners who are concerned about its potentially invasive tendencies.
Here are a couple of images this week from the garden of our older clumps of Cyclamen hederifolium. For garden areas that are dark and dry, where nothing else grows, cyclamen are your best bet. Of the plants below, one is at the base of a cryptomeria and the other at the base of a pine. Although they flower from August until Christmas, the winter foliage is just hard to beat. Hardiness is Zone 4a-8b.
This winter has been an amazing one at JLBG for the mid-winter flowering, evergreen magnolias. Formerly known as Michelia, there are several species from warm temperature Asian climates, which flower in the mid-winter. The plant in the top photo is our oldest specimen of Magnolia platypetala, and below is Magnolia macclurei…both planted in 1999, and in full flower in January. Obviously, we will loose open flowers if winter night temperatures drop too far below freezing, but the remainder of the flower buds usually open shortly after temperatures warm.
Also, the bright gold shrub in the first image is the original plant of our introduction, Illicium parviflorum ‘Florida Sunshine’…the plant from which all plants in the world were propagated. To the lower right is the Mediterranean native, Phlomis fruticosa ‘Miss Grace’. All in all, a lovely winter garden combination.
Pittosporum tobira ‘Kansai Sunburst’ is looking lovely in the mid-winter garden. This Japanese selection emerges with brightly cream-edged leaves which age to green. This selection came to the US, via the former Asiatica Nursery, which brought so many wonderful Japanese selections to American gardeners.
This native of China, Japan, and Korea should mature around 10′ in height. Pittosporum tobira is prized for its spring-produced, intensely-fragrant small white flowers that smell like orange blossoms. We’ve had our plants in the ground since 2007, so they’ve passed the survival test of two winters with low temperatures in the single digits F. Winter hardiness is Zone 7b and warmer.
Asarum hypogynum ‘Artist’s Palette’ is in full flower here at JLBG in late January. Despite being first published in 1915, this little-known species is very poorly represented in ex-situ plant collections worldwide. Our clone is a division from a wild plant we brought back from our 2008 botanical expedition to Taiwan. The foliage on this species is some of the largest in the entire genus. For us, Asarum hypogynum starts flowering in late summer and continues most of the winter. We are working to eventually be able to share this with other collectors. Hardiness is Zone 7b and warmer.
Asarum minus ‘Cupid’ is one of our heavily silver patterned selections of our native wild ginger. When cold weather arrives, the evergreen leaves take on a lovely purple cast. This is an excellent clonal selection we made in 1994 from a construction site, and one we hope to offer in the future though Plant Delights Nursery.
Here’s an image taken this month of the wonderful Aucuba japonica ‘Limbata’. While most aucubas have yellow leaf specks, this old cultivar, first mentioned in historical literature in 1864, is sadly still quite unknown in gardens. That’s not too surprising, however, due to its slow production time as a commercial nursery crop. For dry shade in Zone 7a-9, this wonderful broadleaf evergreen is hard to beat.
One of our favorite winter hardy (Zone 7b) century plants is the non-spiny Agave bracteosa ‘Stingray’. Here is one of our garden specimens this week, which has been thriving in the ground since 2016. Unlike most agaves, which prefer full sun, Agave bracteosa is better in part sun (full sun for only a few hours during the day). Agave bracteosa ‘Stingray’ is also a fairly slow grower that only produces a few offsets. A mature rosette will top out around 15-18″ tall x 2′ wide. We love the unique texture, which differs from all other agaves.
Bambusa multiplex ‘Alphonse Karr’ is looking so hot this winter with its amazingly striped canes. This clumping bamboo is usually grown as a die-back perennial here in Zone 7b, since it goes to the ground when temperatures drop below 10 degrees F. Because we’ve had three mild winters, we are once again able to enjoy the amazing striping of the canes. I did get a chuckle last year, when I saw Bambusa multiplex show up on an invasive species list for North Carolina. As I explained in my letter to the group, Bambusa multiplex is first and foremost, a clumping species. Secondly, all truly invasive species (which invade functioning natural ecosystems, displacing natives and causing economic harm once population equilibrium has been reached) must be able to spread by seed, and bamboo clones only flower once in 100 years, and then die. It’s these emotionally driven lists, without any basis in facts or real science, that makes so many of the invasive lists a farce, and sadly untrustworthy.
Here’s one of our favorite hollies, looking great in the garden this week. Ilex integra ‘Green Shadow’ is a variegated (creamy-edged leaves) form of the Mochi holly. This amazing columnar holly, that hails from oceanside mountain slopes in Japan, Korea, Southern China, and Taiwan, reaches 20′ tall x 7′ wide, which is the case with our 16 year old specimen. Although Ilex integra ‘Green Shadow’ will grow in both sun and shade, full to half day sun results in the most dense foliage. This is female clone, but we never see more than a dozen berries, so we assume it needs a male nearby to fruit better. For a narrow evergreen screening plant, it’s hard to beat. Hardiness is Zone 6b-9b.
One of the last plant exploration trips the late plantsman Alan Galloway made, was to Majorca, Spain. Alan was so excited to return home with some special selections of the fall-flowering Arum pictum, which typically has solid green foliage…except on Majorca. This beautiful form is known by collectors as Arum pictum var. sagittitifolium, although the name isn’t considered valid due to the natural variability in leaf patterns. This is Alan’s favorite form from his trip, to which we added the cutlivar name, A. pictum ‘King James’. It seems that back when Majorca had kings (thirteenth and fourteenth century), before its merger with Spain, they had a propensity for naming most of them, James.
One of many exciting new introductions for 2022 is Phlox divaricata ‘Blue Ribbons’ PPAF. This variegated version of our wonderful native woodland phlox was discovered here as a single sport in our garden by our plant taxonomist, Zac Hill. Instead of being all green, each leaf is edged with a wide creamy border and flushed with pink during the colder months. In early spring, the entire clumps are topped with sweetly fragrant blue flowers. We think Phlox ‘Blue Ribbons’ is an incredible design addition for the woodland garden. Hardiness is Zone 3-8. The new catalog, with this and many other amazing gems, goes on-line in 2 weeks!
Here is the wonderful Fatsia japonica ‘Variegata’ in our garden on Oct 25. This fabulous shrub is a member of the aralia family, and a first cousin of the off-despised running ivies. Not only do we love Fatsia for its amazing bold texture and evergreen foliage, but we love it because it flowers in fall. The second photo was taken a mere four weeks later, when it had exploded in full bloom.
Fatsia japonica is a superb pollinator plant at a time when so little is in full bloom. Our winter low temperatures so far have been 27 degrees F, which hasn’t affected the flowers. Winter hardiness is Zone 7b and warmer.
I remember first meeting the golden foliaged Leyland cypress back in the early 1980s at the JC Raulston Arboretum, and falling in love. Despite eventually removing almost all of our other cultivars of Leyland cypress from the garden due to size issues, we still treasure this gem. For us, x Cuprocyparis leylandii ‘Golconda’, which was discovered in the UK in 1972 as a branch sport, has been a wonderfully slow grower in our climate….4′ tall in 25 years. We understand it grows much faster in climates with cool summer nights, but we’re thrilled ours is slow enough to stay garden-sized.
One of our favorite fall woodland plants is a member of the Aster family, belonging to the genus farfugium. Farfugiums have long had a bit of an identity crisis, as they were originally named in 1767 by Linnaeus as Tussilago japonicum. In 1768, the same plant was also published as Arnica tussilaginea. Then, in 1784, it was moved to the genus, senecio, and became Senecio japonicus.
Later in 1891, it was renamed again, this time as Senecio tussilagineus. It remained in the genus senecio until 1904, when it moved to the genus Ligularia, and became Ligularia tussilaginea. Here it remained until 1939, when it became Farfugium tussilagineum, but corrected the same year to match Linnaeus’s original epithet, resulting in Farfugium japonicum, which it remains today.
Below is our plant of the typical species, Farfugium japonicum in flower at JLBG this week. Through the decades, we have been collecting an array of other forms. Light open shade or a tiny bit of morning sun and average to slightly moist soils produce the best results.
Farfugium ‘Roundabout Fall’ is our selection of a hybrid with our Taiwanese collection Farfugium japonicum var. formosanum and the typical form. We like the smaller, thick, rounded leaf shape.
Farfugium ‘Jagged Edge’ is another upcoming JLBG/PDN introduction, scheduled for a 2023 release. It forms one of the larger clumps of any farfugium cultivars we’ve grown.
Farfugium ‘Bashi Ogi’ is the only cultivar we know of Farfugium japoncium var. luchuense. This rare variety hails from Japan’s southern Ryuku Islands of Okinawa and Kagoshima. It differs in appearance by being a much smaller plant with leaves which are wider than tall. Here is our plant flowering now here at JLBG.
For 2022, Plant Delights will introduce JLBG’s first selection of Farfugium japonicum var. luchuense, that we’ve named Farfugium ‘Sweet Spot’. It’s a miniature seed selection from the above Farfugium ‘Bashi Ogi’, that only gets a few inches tall, so will make a great house plant, where it isn’t winter hardy.
Another genus of ferns that we just adore are the bamboo ferns of the genus coniogramme. We’ve grown these amazing gems for two decades, and after all that time are still in love. Although these woodland ferns are deciduous, they are tardily so, so they still look quite fresh into mid-November. Here are a couple of favorites, photographed this week.
At the top is the texturally fascinating Coniogramme intermedia ‘Shishi’ from Japan, and below this is our 2006 introduction of the Chinense native Coniogramme emeiensis ‘Golden Zebra’. We rate both of these as winter hardy from Zone 7b and warmer.
Many gardeners are familiar with or have grown arum…mostly forms of the widespread Arum italicum, but few have grown the blingy gem of the genus, Arum pictum var. sagittitifolium. We are thankful to have this amazing collection from an Alan Galloway expedition to Majorca, Spain. Sadly, this species isn’t nearly as winter hardy (Zone 7b and warmer) as Arum italicum and we have never been able to coax it to set seed.
We have been very impressed with this stunning new selection of Podocarpus from Japanese nurseryman, Yoshio Sato. Podocarpus ‘Miu’ is a wonderfully variegated selection that has shown a good dense habit, great coloration, and no burning in full sun.
Since so many Americans purchase plants based on the name, and Japanese cultivar names make plants a very difficult sell in the US, the US marketing folks sell this as Roman Candle podocarpus. No matter what you call it, it’s a heckuva plant. Hardiness is Zone 7b and warmer. The marketing folks say this will mature at 15′ tall x 4′ wide, but the in the patent, the originator says it matures at 50′ tall x 25′ wide. Hmmm…that’s quite a discrepancy. Sounds like someone is fibbing.
Every day as we take the short drive home, we’re greeted with this combination of Chamaecyparis obtusa ‘Fernspray Gold’ and a new black elephant ear. We encourage people to be more conscious of textures, forms, and colors in the garden, and to notice how plant placement can be used to create such really pleasing moments.
Here’s a recent image of the amazing Colocasia esculenta ‘Maui Sunrise’, still looking great in late October! Moist, rich soils and full sun are the key for your plants to look this spectacular! Winter hardiness is Zone 7b and warmer.
Apologies for commandeering the famed Duke Ellington line, but it seems appropriate for the new Colocasia ‘Waikiki’.
When we first met Hawaii’s John Cho in 2003, we knew some special elephant ears would be the result of our collaboration, but it was hard to imagine something like the seriously tricked-out Colocasia ‘Waikiki’. Almost every year, John, who has now retired, but is still actively breeding elephant ears, travels to JLBG to evaluate his new hybrids at our in-ground trials and make future introduction decisions. There are some seriously amazing new selections starting down the introduction pipeline.
Colocasia ‘Waikiki’ will be released from Plant Delights Nursery on January 1, so if you like this, mark you calendars and stay tuned to the website.
I can’t speak to the truth that blondes have more fun, but on behalf of gardeners who grow blondes (gold leaf plants), we certainly have more fun when they’re around. One of our horticultural holy grails has always been a gold leaf elderberry we can actually grow. The horticultural market is dominated by northern cold climate selections of colored-leaf elderberries, which refuse to survive our hot, humid summers.
I can’t tell you how excited we were a couple of years ago to learn of a Keith Mearns discovery of a wild elderberry near Columbia, SC with beautiful golden foliage, Sambucus canadensis ‘Blonde Envy’. Although it took us a while to track one down (Keith says that less than a dozen exist in the world currently), it is now performing beautifully in a prize spot at JLBG. We’ve turned our Plant Delights propagators loose in the hope we can have enough to share in the 2023 Plant Delights spring catalog.
Just prior to the pandemic, we were plant collecting in UK nurseries, and made a stop at the always amazing Cotswold Garden Flowers. Founder Bob Brown’s son, Edmund, had taken up elderberry breeding, and now held the National Sambucus collection. We were able to bring back a couple of his complex hybrid introductions to trial, and to our shock, both are thriving in our summers. Here is a photo of our 2 year-old clump of Sambucus ‘Chocolate Marzipan’ in the garden. Finally, sambucus envy will be over for southern gardeners.
There are several freckled/variegated selections of beauty berry (callicarpa) on the market, but virtually all are variegated forms of Asian species. We were excited to learn that plantsman Ted Stephens of Nurseries Caroliniana had found a speckled form of the native Callicarpa americana on his property in South Carolina. Our garden plant of his C. ‘Carolina Sunrise’ was interesting, but not spectacular. So, we grew quite a few from seed, knowing that the variegation would be heritable, and those finalists which remain in our evaluation area today are far nicer than the original. Here is one of our finalist selections in the garden this week.
Just snapped this photo of Aspidistra minutiflora ‘Leopard’…one of our favorite cast iron plants. Although it isn’t really winter hardy here in Zone 7b, it makes one heck of a tough house plant.
Stachyurus chinensis ‘Golden Joy’ is looking fabulous in our garden. This new gold-leaf sport of Stachyurus ‘Joy Forever’, discovered by plantsman Ron Rabidou, has been a wonderfully bright spot in the woodland garden at JLBG
Most folks think of yuccas as only sharp plants, but one that’s sharp without being sharp is our Southeast US native Yucca x recurvifolia…a naturally occurring hybrid between Yucca aloifolia and Yucca flaccida. Here is the clone Yucca x recurvifolia ‘Variegata’ in the gardens this week. Hardiness is Zone 6b/7a and south.
Over the last few years, we’ve been growing more and more aspidistra (cast iron plants) from seed in the garden. Here are a few of our more interesting seedlings. The first is from our search for a narrow-leaf selection of the common Aspidistra elatior, which has been christened A. ‘Thin Man’. The second is a streaked and spotted form that we named A. ‘Zodiac’. The third is a yet un-named seedling from Aspidistra ‘Snow Cap’. Surprisingly, the white leaf tip trait comes consistently true from seed.
Arundo donax ‘Peppermint Stick’ is looking quite gorgeous in the garden this summer, although you will need a rather large space in which to grow it. I’ve always felt this would be fantastic on large commercial landscape projects. Sadly, we see this pop up on a few poorly-researched lists of invasive plants, which would be quite difficult since it neither runs or produces viable seed in cultivation.
Cortaderia selloana ‘Silver Fountain’ is one of those amazing plants that we offered through Plant Delights Nursery many years ago (1999, 2000), but it continues to impress in the garden, which makes us wonder if we should propagate and offer it again. Here is our 20 year old clump in the garden this week. Thoughts?
Here’s a fun combination from the gardens today with Hydrangea paniculata ‘Bobo’ underplanted with Sedum ellacombianum ‘Cutting Edge’, which nicely echos the various shades of green in the flowers.
Even with all of the amazing new Hydrangea macrophylla introductions, it’s hard to beat the old Japanese cultivar, Hydrangea macrophylla ‘Maculata’. Hope you enjoy this shot from JLBG this week.
Arundo donax ‘Golden Chains’ is looking quite nice in the garden this month. We love this selection of the giant ornamental grass that’s used for making reeds for wind instruments. Arundo ‘Gold Chains’ is much less vigorous than the the typical species, and much easier to fit into smaller gardens. Here’ we’re growing it as a marginal aquatic, where it thrives as well as it does in typical to dry garden soils.
We’re trialing quite a few of the new colored-foliage, non-invasive ajugas, and are quite excited so far. Here is one of several that we really like, Ajuga ‘Parrot Paradise’ in the garden. These ajugas open up a wealth of color combination possibilities for garden designers. Hopefully, you’ll see this gracing a Plant Delights catalog in a few months.
We are in love with the winter hardy princess lilies, and have been for quite a while. They have been in peak bloom for several weeks now, with no sign of slowing down. Here’s our oldest clump of Alstroemeria ‘Princess Fabiana’ this week. Shockingly, these have also been winter hardy for years in Western Michigan Zone 5b/6a. We think if more people knew how great these are in the garden, everyone would have them. Half day sun is best, although they will also be fine with slightly more or slightly less.
I grew up as a child spending most of my time botanizing the woods from a ridiculously early age. One of the native plants I’ve known since my earliest adventures is Asarum arifolium, which was the most common wild ginger in our region. Over the last 60 years, I’ve undoubtedly seen tens of thousands of this species.
I was fascinated by the variability in the amount of silver in the leaves, the contrast in the leaf pigmentation, the propensity to clump tightly or run, along with some slight variations in flower color and size. Below is a form that makes a particularly tight clump with good contrasting leaf markings. Despite the occasional solid green leaf forms, the one constant has always been the green leaf veins in between the silver blotching….until…
untill I found the oddball below in the woods north of Mobile, Alabama. In the middle of a patch of normal plants was one single individual with reversed leaf patterns…the leaves have a green base with silver veins. I certainly know the pattern, which is typical of several other native asarum species (minus, heterophyllum, lewisii, harperi, shuttleworthii, etc.), but this pattern simply isn’t allowed in Asarum arifolium. We watched impatiently as our plant first flowered, thinking it must be some odd hybrid, but the flowers told a different story…pure Asarum arifolium. We even grew a crop from seed to discover that 50% of the offspring had this same reverse pattern. As we chatted with other botanists about our find, we’ve discovered two other folks who have also found similar individuals, so these “off the bell curve” forms are out there, albeit quite rare.
It’s hard to imagine a more spotted hardy plant than Arum x diotalicum ‘Chui’. Shared with us by UK plantsman John Grimshaw, this hybrid of Arum italicum and Arum dioscoridis shares the best traits of both species…the leaf markings of Arum italicum and the floral (spathe) staining of Arum dioscoridis. We hope to have enough to share in a couple of years.
Most folks in the Southeast US consider sweetgums to be a less than desirable tree, while gardeners in most foreign countries consider Liquidambar styraciflua to be a garden gem. Over the years, we have collected cuttings of quite a few gold sports from roadside botanizing expeditions, but none have proved to have good enough garden value to introduce. Thankfully, an Australian gardener discovered and propagated this amazing golden selection, which is becoming more widely available in its native haunts under the cultivar name L. ‘Naree’. Here’s our selection at JLBG this spring…pretty impressive! That’s some fine golden lipstick!
Here’s another new elephant ear we’re thinking about introducing, but we’d love to hear your thoughts. Mature height is 3-4′ and it does spread among other plants. We are calling it Colocasia ‘Smiley Face’. This is an unidentified species, probably from North Vietnam, that has been hardy for us for over a decade. Thoughts?
Ornamental grasses make such great combinations. Looking outside our back door now is this combo of Chasmanthium ‘River Mist‘ with tricyrtis, and a thelypteris fern. No colorful flowers…only great textures and form.
Astilbe chinensis ‘Amber Moon’ is looking fabulous today! Who cares if it ever flowers…I’d grow it for the foliage. Because it’s an Astilbe chinensis, it’s tolerant of our summer heat and humidity…a great Darrell Probst introduction.
The Solomon’s Seal, Polygonatum odoratum ‘Angel Wings’ looks delicious in the garden today! Light shade to part sun is ideal.