If you’re like us, you never have enough purple-foliage plants in your landscape, so we’re always on the lookout for something new. One of our finds a few years back is this purple-leaf plum from our friend Dr. Dave Creech in Texas. Prunus ‘Purple Pride’, which Dave and his staff at Stephen F. Austin State University discovered, is a seedling of the widespread native, Chickasaw plum, Prunus angustifolia, with an unknown suitor.
Many purple-leaf trees loose their color during the summer, but not Prunus ‘Purple Pride’. Our specimen at JLBG, pictured below is 4 years old. We have also not seen any sign of diseases, which often plague many domesticated prunus. This should top out around 12′ in height and 15′ in width. Supposedly, our tree will fruit eventually, and reportedly, the fruit are rather tasty. Hardiness is Zone 7a and warmer.
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).
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.
Here’s a recent image from JLBG, giving an idea of what’s possible when being thoughtful of textures and colors when planting. Plants include Iris x hollandica ‘Red Ember’, Heuchera ‘Silver Scrolls’, Carex ‘Bonnie and Clyde’, Thelypteris kunthii, and Juniperus chinensis ‘Parsonii’.
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.
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.
Here’s a fun combination this from the garden this week, where we combined two three-leafed plants together…a silver leaf Trillium cuneatum with the hardy purple-leaf shamrock, Oxalis triangularis. You can have all kind of fun making these little vignette combinations in your garden, using your school colors, or any other design scheme that suits your tastes.
Here’s a photo we took right before our first big freeze of the year, with the purple-foliaged perennial, Tradescantia pallida and our Iris ensata gate, built by NC sculptor Jim Gallucci. Gardens are an amazing canvas on which to paint with both plants and structures.
It’s far more common for new perennials to be discovered than new trees…it’s a size thing. Botanists were excited in 1960, when Chinese professor H.T. Chang published a new small tree that he thought to be a witch hazel, named Hamamelis subaequalis. The original Jiangsu Province collection actually dated to 1935, but it took 25 years to be published based on a herbarium specimen of the fruit.
The new hazel hadn’t been seen alive since 1935, and was assumed extinct, when it was rediscovered in 1988 by a team from the Jiangsu Institute of Botany. After studying live flowering specimens for three years, it became obvious that It wasn’t a witch hazel at all, and a new genus, Shaniodendron was published for the plant. Here, it remained, until 1997, when DNA analysis revealed that Shaniodendron was actually a second species in the formerly monotypic genus Parrotia….only living some 3,500 miles from its nearest relative. Its sibling is the famed Iranian Ironwood (Parrotia persica).
Currently, there are only five known populations in China, so it is quite rare in the wild. The largest plants seen in the wild were 30′ tall, but Parrotia subaequalis should grow slightly taller in cultivation. The photo below is our 13 year old specimen. Most plants of Parrotia subaequalis in the US, including our specimen pictured below, trace back to famed Japanese plant collector of Chinese plants, Mikinori Ogisu. Fortunately, Parrotia subaequalis is quite easy to root from cuttings, so we hope its not long before this amazing plant becomes much more widespread in commerce. In trials so far, it came through -25 degrees F with only slight tip damage, so it looks like a solid Zone 5-8 plant.
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.
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.
Last year, we saw a listing for a new Mangave, M. ‘Purple Passion’ on the availability of a West Coast liner producer, so we ordered some to try. It was immediately evident when we unpacked the shipment, that the plants didn’t look anything like a mangave, nor did what we received match the image that the supplier had on their website.
As we dug deeper, we found that the supplier had misappropriated a mangave image from another wholesaler and was using it for the plant we purchased, desptie the two looking nothing alike. Once the image issue was remedied, we set out trying to track down the origin of this strange plant, which looked more like a steamrolled eucomis than a mangave.
The supplier sent us to their supposed source, who had never heard of the plant in question. For six months, we have chased down one lead after another, contacting all of the well-known plant breeders of these type of plants on the West Coast. All dead ends.
Examining the plant in our garden this summer, it occurred to us that the unusual leaf netting must have come from a beschorneria. Comparing the foliage netting of ‘Purple Passion’ to beschornerias in our garden yielded a perfect match, except for the leaf color. The only plant which could have been crossed with a beschorneria to give such leaf color is a manfreda. Hence, our conclusion that our plant is in fact a new bi-generic hybrid, x Beschfreda ‘Purple Passion’ (beschorneria x manfreda).
Since we don’t know which species of beschorneria was used, we are uncertain about potential winter hardiness, but with plants in the ground now, all we need to do is wait for cold weather. Below is a photo of the plant in the garden this week. If you happen to know more of the backstory of this fascinating plant, please let us know.
We love the winter hardy spiderworts, and Tradescantia ‘Pale Puma’ is one of our favorites. This hybrid of two northern Mexican species, T. pallida x sillamontana forms a lovely compact deciduous groundcover. Here it is in the garden this week, colored nicely and awaiting the first frost, which will send it into dormancy. In colder climates, it makes a great hanging basket plant.
Just caught this image of two North American (Northern Mexico) natives snuggled up closely together in the garden. At top is one of the spider lilies, Hymenocallis acutifolia, and wrapped around its ankles is Tradescantia pallida. We truly love Tradescantia pallida as a great combination-enhancing perennial that’s completely winter hardy here in Zone 7b.
If you visit JLBG, it’s hard to miss that we like combinations of purple and gold. Here is a favorite summer combo, planted across from the crevice garden, where we use Rudbeckia speciosa as a foot warmer for Calycanthus ‘Burgundy Spice’…a fun combo using two North American natives.
Sounding more like a soft drink/crayon combination, Orangeola is actually a stunning selection of weeping, dissected, purple-leaf Japanese maple. Our oldest specimen at JLBG is now 27 years old, and measures 5′ tall x 12′ wide…sorry that size doesn’t really match what you’ll find on-line. We think it’s one of the most handsome clones we grow.
Here’s a new image of Colocasia ‘Aloha’ growing in our garden. This 2017 introduction from the breeding work of Dr. John Cho is truly amazing and so unique. This plant is 8 weeks in the ground from a 1 quart pot.
Most popular perennials in the market today are introduced and heavily promoted by marketing companies. Every now and then, however, a superb perennial enters the marketplace without any fanfare or marketing, despite being superior and longer-lived than the patented, highly touted cultivars. Such is the case with Euphorbia ‘Cherokee‘…a fabulous purple-foliaged selection we’ve grown since 1999. Euphorbia x martinii ‘Cherokee’ may not look as great in a container, but it is absolutely incredible in the garden. We hope you’ll give it a try…if you like purple foliage.