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Yew Dell Botanical Gardens

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Plants Under Evaluation

A few preliminary notes on some promising selections.

You can't spend more than a few minutes on the grounds without fully keying into the fact that at Yew Dell, it's all about the plants! We're always on the lookout for something new to fill a niche; better color, stronger growth, more pest resistance or something completely different for area gardeners.

With all our travels and collaborations with plant breeders, collectors and other acquirers of plants, we're constantly bringing in new plants for testing. We thought you'd enjoy a preview of some early observations.

Stachyurus chinensis var. variegata -Variegated Chinese Stachyurus
Collected as a chance seedling in a nursery near Nagoya Japan, this looks to have all kinds of potential. Splashed variegation of green, white and gold that has been entirely stable through two seasons of growth. The species makes a medium-large spreading shrub with pendulous masses of chartreuse little bell flowers in spring. We think it needs a little more evaluation but if this one pans out, it will be a great addition to the shade garden.

Buddleia 'Purple Haze' - Dwarf Butterfly Bush
Here's one that came out with much hype that seems to be living up to its billing. A dwarf and sterile selection, plants will top out at about 2'- 3' tall with a mounding habit. Plugs that were newly planted at Yew Dell last spring have grown well with little to no TLC and are blooming nicely. They seem to produce rather large inflorescences for such small plants. This seems to be a great massing groundcover plant for hot sunny spots.

Hydrangea paniculata 'Phantom' - Panicle Hydrangea
There are just so many . . . but this one is looking good! The hype about 'Phantom' has been tremendous vigor, excellent deep green foliage and humongous flower heads - and that's what we're seeing. The stems seem quite sturdy so the plant hasn't flopped in full flower. Flower heads are a good 10" across and are more open and airy than something like 'Unique' that feels more like a Nerf football. 'Phantom' seems to bear flowers over a long period of time.

Hydrangea arborescens Invincibelle® Spirit
After a long search, this selection from NC State's Dr. Tom Ranney hit the market a couple of years ago. Think of it as a pink-flowered Hydrangea arborescens 'Annabelle' and you'll have the idea. We've found the color to be good, with reasonable staying power. The stems seem a tad on the floppy side but we think that may just be the youthful stage of our specimens. We'll keep you posted. We know Dr. Ranney is working on even better selections.

Hydrangea arborescens 'PIIHA-I' Bella Anna™
Sound familiar? This competing pink 'Annabelle' cross from Dr. Mike Dirr has shown deeper flower color than the above selection, with slightly smaller flower heads and fairly good stem strength. This one is being marketed through Bailey Nurseries through their Endless Summer series.