Our 2nd earliest trillium is up and almost ready to flower. The deep south native Trillium underwoodii is the second toadshade to emerge, only behind the Florida genetics of Trillium maculatum, which emerges here in December. Although there is plenty of cold remaining, Trillium underwoodii is able to tolerate multiple nights of hard freezes below 20 F after the foliage has emerged. Winter hardiness is Zone 6a-9b.
We were thrilled to see most of our plants of Trichocereus ‘Love Child’ come through the 11 degrees F unscathed. We hope to have enough of these in the next year or two to share. We had long wanted to grow and offer some of the ridiculously large flowered, tacky colored tropical trichocereus cactus, but they simply had no winter hardiness.
Enter our former volunteer curator, Mike Papay, who had the same idea, but was more determined to make it happen. Mike worked with Trichocereus bruchii, and the resulting second generation plants yielded one he named Trichocereus ‘Big Time’.
He created another winter hardy hybrid using Trichocereus bruchii and Trichocereus thelogonus that he named Trichocereus ‘Iridescent Watermelon’. We subsequently crossed both of Mike’s hybrids together to create a seed strain we named Trichocereus ‘Love Child’. Below is one of our garden plants after enduring 11 degrees F. Below that is the same plant in flower last spring. Hardiness zone 7b to 10b.
Looking wonderful in the fall garden is the evergreen Choisya ‘Limo’, known commercially as Goldfingers choisya. This gold-leaved selection is from a cross of two Southwest US native shrubs, Choisya arizonica and Choisya ternata, subsequently referred to as Choisya x dewitteana. The genus Choisya is named to honor the late Swiss botanist/philosophy professor Jacques Denis Choisy (1799-1859) This gold-foliaged selection from the UK’s Peter Moore forms a 3′ tall shrub in 5 years.
The fragrant white clusters of axillary flowers adorn the plant starting in April (NC). We have our specimen planted in a full sun rock garden, where it thrives in very well-drained soils. Hardiness is Zone 6a-9b.
We are always interested in checking out the offspring, when plants in the garden have unexpected romantic rendezvous with their distant cousins…often when we least expect it. We have found arums tend to be quite promiscuous in the garden. While most offspring go to the great compost pile in the sky, a few are worthy of adoption and naming.
Below is our selection of a cross of Arum dioscorides x Arum italicum that we named Arum ‘Love Child’. While the foliage resembles typical Arum italicum, the spring-borne flowers show great influence of Arum dioscorides with the purple spotting inside the spathe. It’s our hope that Plant Delights will have a first crop of this new hybrid to share in the 2023 catalog.
The shrubby North American native salvias including Salvia greggii and Salvia microphylla are spectacular plants in the fall garden. The same goes form the hybrids between the two species, known as Salvia x jamensis. Here is our clump of Salvia x jamensis ‘Blast’ looking absolutely stunning in late October. Flowering is heaviest in spring, slowing in summer, but again equaling it’s spring show in fall. Hardiness is Zone 7a-9b, and possibly a good bit colder.
How many folks are growing Hypericum hypericoides (St. Andrew’s cross)? The name translates to hypericum that looks like a hypericum….duuuh. We love this native shrub which hails from New Jersey southwest to Texas. St. Andrew’s cross typically matures at 2.5′ tall x 5′ wide and adorned from May through September with small, light yellow flowers, which form an “x”, hence the common name.
In the wild, Hypericum hypericoides is usually found in slightly acidic to slightly alkaline sandy soils, often in pine savannas, but in cultivation, they seem quite adaptable to an array of garden conditions from sun to part sun. In form, it resembles a Helleri holly with yellow flowers. The photo below is a 2 1/2. year old plant at JLBG. Winter hardiness should be Zone 6a-8b at least.
We think Juliet would agree that Cuthbertia rosea is one sweet perennial. Looking great now is the southeast native (Maryland south to Florida) spiderwort, Cuthbertia rosea, which for us, begins its flowering season in spring, and continues sporadically through the summer months. Native primarily to dry sand, this easy-to-grow perennial has exceptional drought tolerance. Like all spiderworts, the flowers open in the morning and close each evening.
This poor plant has long suffered from an identity crises due to dueling taxonomists. This poor plant is also known as Callisia rosea, Tradescantia rosea, Phyodina rosea, and finally Tripograndra rosea. Despite the naming conundrum, it’s surprising that more people don’t grow this amazing plant.
Re-appropriating a line from the late Buck Owens, it’s crinum time again. Crinum lilies begin their flowering season in our climate around April 1 (frost permitting). Some bloom for a short number of weeks, while other rebloom for months. Depending on the genetics, some crinum hybrids start flowering in spring, some in summer, and others in fall, and a few flower during the entire growing season.
Crinum ‘High on Peppermint’ is one of our newer named hybrids, which starts flowering for us around June 1, and hasn’t stopped yet.
Crinum ‘Superliscious’ is another of our new hybrids that starts flowering July 1, and has yet to stop. Now that our evaluation process is complete, we’ll start the propagation process.
Crinum ‘Southern Star’ is an incredible hybrid from the late Roger Berry, entrusted to us to propagate and make available. That’s a tall order since it’s one of the slowest offsetting crinum lilies we’ve ever grown. Crinum ‘Southern Star’ is a hybrid with the virtually ungrowable, yellow-flowered Crinum luteolum, which hails from Southern Australia. For us, Crinum ‘Southern Star’ doesn’t start it’s floral display until August 1.
We’ve had a longstanding love affair with the genus styrax, thanks to their amazing spring display of fragrant white bell-like flowers. Of the 130 recognized species, we have so far tried 22, of which 9 remain alive.
The first featured below is Styrax japonicus ‘Evening Light’. This amazing, black-foliage form of the typical green-leaf Styrax japonicus appeared as a seedling in Holland at the nursery of Henny Kolster. When I first saw the photo, I assumed it to have been “photoshopped”, but after growing it for several years here at JLBG, the foliage is indeed jet black. This is one of the most stunning small trees in our collection.
Styrax formosanus, which hails from Taiwan (Formosa) is undoubtedly the most floriferous species we’ve encounterd. Here is our garden plant this spring. For us, this generally tops out at 15′ to 20′ tall.
Styrax americanus (Illinois south to Florida) is one of only four native US styrax species. Usually topping out around 10′ tall, this form introduced by Woodlanders Nursery has foliage with a lovely blue cast.
Looking great in the crevice garden this month is the Pacific Northwest native, Dichelostemma ida-maia This odd little bulb is a member of the Asparagus family…so that makes it as cousin to agaves, hostas, and asparagus. In the wild, it is only found in coastal meadows and into forest edges and partial woodland openings in Northern California and Southern Oregon. As a rule, California natives typically aren’t climatically welcomed in the rainy Southeast US, but Dichelostemma ida-maia is an exception.
Here is a small sampling of the amazing array of flowers that are in the garden currently (late April/early May) on our pitcher plants. The genus Sarracenia is native to North America and hails from Canada south to Florida, where they are found in seasonally damp bogs. In the garden or in containers, they are incredibly easy to grow as long as they have moist toes (roots), and dry ankles (base where the crown meets the roots). Winter hardiness varies based on the species, but most are hardy from zone 5a to 9b.
A couple of our favorite native redbud selections looking exceptional after flowering today…Cercis canadensis ‘Flame Thrower’ and ‘Golden Falls’…both from the breeding work of NCSU plant breeder, Dennis Werner.
I hope everyone with a sun garden has grown the amazing Amsonia hubrichtii. It’s certainly looking fine in the garden as this recent image from JLBG will attest. Few people realize it was name after the late American naturalist, Leslie Hubricht. Before Hubricht died in 2005 at age 97, he had published 108 new species of mollusks (snails). His world class collection of over 500,000 specimens is now housed in the Chicago Field Museum.
After an early life stent as a research associate at the Missouri Botanic Garden, Hubricht went on to spend the majority of his career as a repairman for adding machines, and later computers. During his career, he moved constantly, living in 22 different cities. His single-minded focus was studying nature…in particular, mollusks. In his spare time, he published 151 scientific papers. This would be almost unheard of for a researcher who had the backing of a major formal botanical institution, of which Hubricht had none.
Additionally, 25 new species of animals were name after him, along with one lichen, and two species of plants…most notably the amsonia. Hubricht did all this despite a formal education that only included a single semester of high school. We salute the amazing Leslie Hubricht.
The crevice garden has “woke” for spring, with early flowering plants in full gear. Here’s a shot of one small section, featuring Delospema dyeri and Iberis simplex (taurica). We hope you can visit in person for the second weekend of our spring open house, May 6 – 8, 2022.
We’ll certainly remember 2022 for many reasons, but a highlight is the first flowering of our Davidia involucrata ‘Sonoma’. This incredible tree was named for French missionary and naturalist, Armand “Pere” David (1826-1900), who first discovered the tree in its native China.
Like dogwoods, what we think of as flowers are actually bracts, the effect is that of the tree in flower is like a dogwood on steroids. Interesting, davidia is in the black gum family, Nyssaceae, and although this tree is not common, it has acquired the common name of dove tree.
We’ve learned a bit about what davidia likes, having killed five plants since first trying it in 2002. Full sun is not ideal, as is deep shade. Our original plant, which as been in the ground since 2002 has yet to flower. The plant of Davidia ‘Sonoma’, which flowered this year, was planted in 2014, and is thriving in light shade/part sun.
Spring is unquestionable peak cactus flowering season at JLBG. Although many of you are familiar with our large opuntia (prickly pear) collection, we thought we’d focus on the more diminutive barrel cactus, which you will see if you visit during our spring open house. Keep in mind that most close at night, not reopening until 10am-noon the following day. The photos below are just a tiny sample of the cacti that will be in flower.
If you’re able to visit during this years spring open house, it will be hard to miss the look of love in the air. We have a record 20 century plants in spike in the garden…a number far surpassing any flowering record we’ve set previously.
Agaves are a genus of mostly monocarpic plants…they live their entire lives to flower once, then after experiencing a giant-sized orgasm, they fall over dead. In the wild, many species take up to 100 years to flower, which is why the name century plant stuck as a common name. In our more rainy climate, our century plants typically flower in 12-15 years. Several of our current crop are actually less than a decade old, but their enormous size has already been achieved, so they’re ready to reproduce.
Some species of agaves offset, and in this case, only then central rosette dies, and the offsets continue as is the case with bromeliads. Those agave species which never offset are one-and-dones, but hopefully will leave behind a plethora of seed for the next generation. From the start of the spikes to full flower is usually about 8 weeks. Below are a few of our babies in spike.
Ok…raise your hand if you’ve grown Aphyllanthes monspeliensis? This odd, monotypic (only member of the genus) is actually a member of the Asparagus family. Hailing from France south into Northern Africa, Aphyllanthes can be found growing in hot, dry, sandy soils, where it produces an amazing spring show of blue flowers on a 1′ tall clumper. The species name “monspeliensis” is named after Montpellier, France, where it grows naturally. Our plants are thriving in our crevice garden, putting on a superb flower show in mid-April.
Iris ‘Gerald Darby’ is one of those iris that doesn’t even need to flower to be garden worthy. Here it is in our garden this week, emerging with its’ purple leggings. This gem is a North American native hybrid of Iris versicolor and Iris virginica, known as Iris x robusta. This introduction of Iris breeder Gerald Darby was actually named for him after his death by another iris breeder R.H. Coe of England. Iris x robusta ‘Gerald Darby’ is equally at home growing in standing water as it is in typical garden soil. Hardiness is Zone 4a-9b.
False lily-of-the-valley (Speirantha gardenii) is one of our favorite early spring-flowering evergreen groundcovers for shade, but one that just hasn’t caught on with customers. Every time we put this back in production at Plant Delights, we wind up throwing out most of the crop. Perhaps one day, folks will realize what a gem this is. Hardiness is Zone 5b-8b.
Will someone please explain to me why more people aren’t growing the amazing sea kale, Crambe maritima. This amazing perennial is a great tasting green that returns every year without replanting. It’s also a great flowering perennial, putting on a show now in our rock garden. We have also never seen any pest activity such as typically bothers other members of the cabbage family. Our plant is growing in half-day sun in pure gravel (in our crevice garden), and never receives any supplement irrigation. The economic return from Crambe maritima is huge. I guess some folks may not find it attractive, but darn, folks!
Ever since I was a small kid, I’ve observed Zephyranthes atamasco (atamasco lily) in the wild, where they grow in swampy wooded lowlands. Atamasco lily is also one of many great nomenclatural muddles with regard to it’s correct spelling. When it was first named by Linneaus, back in 1753, it was assigned to genus amaryllis, so the specific epithet was spelled “atamasca”.
In his later work, Linneaus changed the spelling to “atamasco”, which corresponded to the Native American name for the bulb. It remained spelled with an “o” even after it was moved into the genus Zephyranthes in 1821. The problem is that, according to International Nomenclatural rules, the original spelling must take precedent. So, Zephyranthes atamasca is correct. Except…there is an exemption for name conservation, when correcting the name will cause confusion or economic harm. There is currently a well-supported move underfoot to conserve the long-used spelling “atamasco”. And you thought nomenclature was boring!
I’ve long marveled at the diversity within the species, and as an adult have been fortunate to be able to collect offset bulbs from some of the special forms I’ve found.
The top image is a very compact form that we’ve named Zephyranthes ”Milk Goblet’. Below that is one of our larger flowered forms from Alabama that we named Zephyranthes ‘Hugo’. Hugo has 5″ wide flowers in a species where 2.5-3″ wide is typical. Both of these are in full flower now at JLBG.
We are just starting with the first wave of Cypripedium (ladyslipper orchids) in the garden this week. One of the earliest selections to put on a show is Cypripedium ‘Rascal’, an outstanding cross of Cypripedium kentuckiense and Cypripedium parviflorum var. parviflorum…all US natives.
Here is a clump of Calanthe ‘Takane’ in our garden in early April. This amazing and easy-to-grow terrestrial ground orchid forms a dazzling clump with age. This mass started as a single division in a 4″ pot, 17 years ago. Not only do they thrive in the ground, but in Japan, they are prized as container plants.
Calanthe ‘Takane’ is a group of hybrids between Calanthe sieboldii and Calanthes discolor, so each seedling is slightly different in flower color. The foliage remains evergreen during most winters for us, but when temperatures drop near 0 degrees F, the foliage will die back completely. Calanthes thrive best in light shade. Winter hardiness is Zone 7a-9a.
Flowering in our parking lot now is the beautiful Halesia diptera var. magniflora, better known as big-flowered two-wing Silverbell. Native from Georgia across to Texas, this beautiful small tree can be found in low moist woodlands. That said, it thrives in average to dry garden conditions.
The variety “magniflora’ is distinguished from the more northern Halesia diptera var. diptera in that the gulf coast form has much larger flowers. This is our collection from Wilcox County, Alabama, where the foliage is much wider than what is typically seen in this taxa. Plants mature at around 20′ in height. Hardiness is Zone 5-8.
The South African (Eastern Cape) Bergeranthus vespertinus has been absolutely fabulous this late winter/spring season. Here it is growing in one of our rock gardens, where it is mostly protected from winter moisture. (Hardiness Zone 7b and warmer…at least)
Here are a few buttery-colored plants flowering today in garden, starting with Arum creticum ‘Golden Torch’. This started as a small field division of a particularly large flowered selection from our 2010 expedition to Crete.
Paeonia mlokosewitschii is known for being un-pronouncable, so most folks refer to it as Molly the Witch peony. This is a particularly lovely butter yellow form from Ellen Hornig of the former Seneca Hill Perennials.
Trillium sp. nov. freemanii is a still unpublished new trillium species (hopefully soon), that we discovered in 1998. Normally red flowered, this is a rare yellow-flowered form.
My visit to Crete in 2010 was eye-opening when I observed that most native daphnes of the region grew in full sun among rock, in the driest conditions imaginable. That prompted us to re-try many of the daphnes that we’d killed years earlier…obviously, with too much kindness. Now, all of our daphnes are planted in baking sun in our crevice garden, or similar rock garden conditions. Here are a few photos at JLBG from early April.
The first is the Mediterranean native, Daphne collina, which most authorities now subsume under Daphne sericea. All daphne pictured below should be hardy from Zone 6a – 8b.
Daphne ‘Rosy Wave’ is a Daphne collina hybrid with Daphne burkwoodii
Daphne x napolitana ‘Bramdream’ is a hybrid of Daphne collina and Daphne cneorum.
Here are images of three of the “next generation” ajuga cultivars, all selections of the Italian Ajuga tenorii. These in-ground photos were all taken at JLBG on April 1. These new ajugas don’t spread wildly or seed around like many of the older, more commonly grown offerings. We think they are pretty darn amazing! The top photo of Ajuga ‘Blueberry Muffin’ represents several plants, planted on 1′ centers. The second image is a single plant of Ajuga ‘Cordial Canary’, and the third is a single plant of Ajuga ‘Petite Parakeet’. These are actually non-staged images, unlike the highly staged, completely unrealistic, manufactured photos you often see in the Dutch-centric catalogs. Hardy from zone 4a to 9b.
Flowering for the last few weeks is the late winter-flowering groundcover, Arabis procurrens. This Balkan native is a rather amazing evergreen groundcover in the cabbage (Brassicaceae) family. For those who never took Latin in school, procurrens = spreading. We grow this in a fairly dry spot in the garden where it gets 2-3 hours of sun each morning. Winter hardiness is Zone 3-8.
We love all of our trout lilies, but Erythronium ‘Goldstrike’ is hard to beat. This is our named selection of Erythronium americanum ssp. harperi. Occurring from Tennessee south of Mississippi, this amazing form graces low woodlands in very early spring. This collection was made by our Plant records/taxonomist, Zac Hill in Alabama. Hardiness is Zone 6-9 at least.
Two shrubs that celebrate the end of winter for us are Loropetalum chinense ‘Snow Panda’ and Exochorda ‘Blizzard’. Here are photos this week from the garden. Loropetalum ‘Snow Panda’ in an amazing selection from the US National Arboretum, while Exochorda ‘Blizzard’ is a creation by NC State’s Tom Ranney, combining three species to create this stunning hybrid. The Loropetalum is winter hardy from Zone 7a-9b, while the Exochorda should be fine from Zone 4a-8b.
Magnolia ‘Forest’s Pink’ put on a splendid show this year in early to mid-March. Sold as a cultivar of the Chinese Magnolia denudata, some magnolia experts insist that it’s actually a hybrid, due to the intensity of the pink color as well as the form of the plant.
Magnolia ‘Forest’s Pink’ originated as an introduction from Treseder’s Nursery in Cornwall, England, who propagated and named it from an original introduction from China by Scottish botanist, George Forrest (1873 – 1932), that was growing at England’s Caerhays Castle.
Magnolia denudata, a typically white-flowered species, native to Central China, has been cultivated around Buddhist monasteries since 618 AD…in other words, nearly 1,500 years. Another long-cultivated Chinese native magnolia with pink flowers and an overlapping native range is Magnolia liliiflora. The commonly known hybrids of the two species are known as the Magnolia x soulangeana hybrids. Since plant explorer George Forest was known to collect both in the wild as well in cultivated areas, it is quite probably that the magnolia that bears his name is not pure Magnolia denudata, but actually a Magnolia x soulangeana hybrid. Looks like someone will need to do some DNA work to sort out this nomenclatural tussle.
Whatever you want to call it, our 25 year-old specimen of Magnolia ‘Forest’s Pink’ was rather stunning this March. Thankfully, the flowering was mostly complete before our mid-March freeze of 23 degrees F.
Prunus ‘Pink Cascades’ is a recent introduction from NC State’s Tom Ranney. This strict weeper can be staked to any desired height, then allowed to trail from there. Here are our stunning two year-old plants this March, grafted at 4′ tall. The plants have already reached 11′ in width on the way to 20′ – 30′ wide.
We’ve made a regular habit of killing fritillarias (the bulb…not the fried food) in the garden, especially those ungrowable brightly-colored species like Fritillaria imperialis that tantalizingly appear each fall in the major bulb catalogs.
Although it lacks the bling of it’s showier cousins, the species that is reliable for us in the garden is Fritillaria thunbergii. This native of Kazakhstan has naturalized in both western China and Japan, where it has been used medicinally for almost 1,000 years as a treatment for respiratory ills. There is still some debate among botanists whether some of the Chinese population might actually be native as well.
In the garden, Frittilaria thunbergii emerges in February, and is full flower at 2-3′ in height by early March. As with most spring ephemerals, it has gone to sleep by early May. Light shade or part sun seems to suit it fine. Hardiness is at least Zone 7a-8b.
One of the fun reasons to grow plants from seed is that each seedling is different…unless you’re growing highly bred annuals. Most non-hybrid seedlings will be under the bell curve, meaning they all look and behave relatively similar. As plant collectors, we get excited when one appears that falls outside the bell curve. An example is our wild ginger selection, Asarum maximum ‘Floragasma’, which has both far more flowers than we typically see with the species, but it also flowers 2-3 weeks before our other clones. Winter hardiness is Zone 7b-9b.
Spring crocus are popping all through the garden, and it’s a challenge to photograph them all. We just happened to recently catch Crocus isauricus ‘Spring Beauty’ in full flower. Crocus isauricus (formerly Crocus biflorus ssp. isauricus) is an endemic to Southern Turkey in the region along the Mediterranean Sea.
The first plant looks for all the world like a fine textured carex, but in fact, it’s an iris. Iris dabashanensis is a little-known species from China, that thrives for us in light shade, but will also take a few hours of early morning sun. Our plant is a Darrell Probst collection from Sichuan, China. Winter hardiness is Zone 5a -8a.
Below is the same plant flowering in early April.
The other plant growing nearby in our gardens that fools even the keenest plantsmen is this liriope look-alike. In fact, this is a cast iron plant, Aspidistra linearifolia. This demonstrates why those pesky taxonomic traits matter. In 2008 we introduced a selection with a lighter central stripe down the center of each leaf called A. linearifolia ‘Skinny Dippin’ which we will be offering again in 2023. Winter hardiness is Zone 7b and warmer.
For years, we struggled to grow the Mediterranean/Balkan native spurge, Euphorbia characias…until we discovered its secrets. First, it isn’t a long lived plant to begin with…in most cases 3-5 years is it, so you’ll need to plant it where it’s likely to reseed. That would be well-drained slopes that are either mulched or covered with gravel.
Secondly, after it flowers in spring with its stunning show of yellow flowers, remove most of the flower stalks as soon as flowering has finished, except those needed to produce new seedlings (the flowers are also great to use in floral arrangements). If not, the seed stalks use up energy causing the plant to decline much faster. We’ve now allowed this to seed throughout the slopes in front of our house, and here is the result…a smattering of 3′ tall x 3′ wide clumps, photo taken mid-winter.
Although this section of the garden, planted in compost-amended sandy loam is irrigated, we typically don’t recommend irrigation for this spurge without excellent drainage. You’ll also read on-line that Euphorbia characias doesn’t like hot, humid summers…another example of fake gardening news that just keeps getting repeated without any concern for the facts.
We’ve also found Euphorbia characias to grow well in part sun under large trees, which keeps the soil dry. The plants will never be as dense as they are in full sun, but they survive and flowers. There is really not anything else that gives you this evergreen blue color and form in the winter garden.
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.
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!
Looking particularly good this week is one of the Southeast US (NC to Texas) native water orchids, Habenaria repens. This gem flowers through most of the growing season, and hasn’t slowed down as we enter November. Water spider orchid can grow both as a marginal or as a true aquatic. Our plant is growing in one of our crevice garden seeps. We’re working to get this really cool native propagated and available in the future.
Calycanthus ‘Burgundy Spice’ is looking so great in the garden at JLBG this fall…right before it strips down for the winter. We love this exceptional purple-foliage selection of the native Sweet Betsy, discovered and introduced by our friends, the Hesseleins’ of Pleasant Run Nursery in NJ.
Cercis ‘Flame Thrower’, a JC Raulston Arboretum release from NC State woody plant breeder, Dr. Dennis Werner, was just awarded the Royal Horticultural Society (RHS) Chelsea Plant of the Year for 2021. In Europe, Cercis ‘Flame Thrower’ is marketed as Eternal Flame. Here is our plant at JLBG this summer. Congratulations to Denny and the Arboretum for this huge honor!
After a long spring/early summer flowering season, we’re now enjoying the seed head of Clematis hexapetala ‘Mongolian Snowflakes’. Here it is growing in our fully sun, gravelly crevice garden.
Here’s a fun combination this week with Gladiolus byzantinus ‘Cruentus’ mingling with Baptisia alba. The European native glads, such as this and Gladiolus italicus are the earliest gladiolus to flower in our climate.
Allium ‘Ostara’ is a new bulbous ornamental onion from a cross of the lovely, but difficult to grow (in the southeast US) Allium karataviense and Allium atropurpureum. We’re growing this in our crevice garden, which is working well…so far. We’re hoping the genes from Allium atropurpureum will make this more growable.
Although narcissus are far from my favorite bulb…mostly due the terribly obtrusive foliage, we have grown quite a few species and cultivars through the years. My love is really for the smaller plants, which usually come with smaller foliage. One cultivar that has stood out through the years is Narcissus ‘Hawera’. Here is our oldest clump, planted in 1997, and despite not being regularly divided, it still puts on a fabulous show every year. Our plants are from our dear friends Brent and Becky Heath at Brent and Becky’s Bulbs.
Every year in late winter/early spring, one of the woody showstoppers at JLBG is the Afghan bush cherry, Prunus jacquemontii. This year was no exception as this stunning deciduous shrub is putting on an amazing show. Our twelve-year old plant is now 4′ tall x 6′ wide.
Flowering this week is our selection of Magnolia floribunda ‘Bridal Bouquet’. When we visited Yunnan, China in 1996, we were able to return with three seed of Magnolia floribunda, a species which seemed completely absent from American horticulture. The resulting seedlings were planted into the garden, where two promptly died during the first winter. Thankfully, one survived and is still thriving today 25 years later.
Magnolia floribunda ‘Bridal Bouquet’ forms an upright, somewhat open evergreen that sometimes starts flowering as early as mid-January. This year, thanks to our consistent cold, it waited until early March to start its floral show. The flowers have a distinctive and fascinating fragrance that we find unique among our magnolia collection. We have shared cuttings with several woody plant nurseries and donated plants to a few rare plant auctions in the hopes of getting this more widely cultivated.
Flowering this week is the aptly named Adonis amurensis ‘Sandanzaki’. This tiny spring ephemeral, whose genus is named after the God of Beauty and Desire, needs to be in a special place so it won’t get lost in the garden. The exquisite floral pattern of this Japanese selection is so amazing.
When we finally discovered that sea kale (Crambe maritima) is indeed growable in our hot, humid climate, we’ve planted it all around. It’s also been rewarding that people have actually purchased it to try for themselves. Frankly, I’d grow sea kale for the ornamental value alone…a perennial with blue waxy foliage and an incredible show of white flowers in spring! Then, there’s the edibility, both cooked and raw. Also, for us, unlike other cabbages and kale, it has been virtually untouched by the pesky cabbage loopers.
Here is a photo of sea kale in our crevice garden this April, growing in a soil mix that’s 50% gravel, with no summer irrigation. Read my lips, I mean text…full baking sun and no irrigation after establishment. We recommend you never let your plants read the repetitive on-line sites that all tout that it only grows in cool, moist, climates…hooey!