trial gardens

Arisaema nonghinense

Jack from Nong Hi

One of the lovely surprises from the aroid collections of the late Alan Galloway, has been the winter hardiness of the “tropical” Arisaema nonghinense. This little-known jack-in-the-pulpit, which was only named in 2014, endemic from 1,500-1,800′ elevation in the Nong Hi district in Thailand’s Loei Province. For those who don’t know Thailand, it’s the last

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Eriophorum virginicum 'Take me Home'

Cotton Grass…Fluffy, not Stuffy

One plant that I’ve tried to grow for decades are the cotton grasses of the genus, Eriophorum. Actually, fourteen of the sixteen recognized species of bog denizens are North American natives. but all but Eriophorum virginicum are native so far north, they have little heat tolerance, as our trials have shown. Some species are tight

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Dictamnus albus

Gaslighting in the Garden

I failed for decades to keep the European gas plant, Dictamnus albus alive in our heat and humidity. Despite these mounting failures, I keep trying new genetics as they become available. Finally, this month, we have met with our first success with our first gas plant flowering. Although gas plant looks superficially nothing like its

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Cornus florida '85 Carat'

What’s Up Doc? 85 Carats, that’s what

Looking absolutely fab in the garden now is the native dogwood selection, Cornus florida ’85 Carat’. You’ve probably never heard of this, because it hasn’t yet been commercially introduced. We acquired this in 2006, from former PDNer Jon Roethling (now Director of Reynolda Gardens), who discovered it on an Interstate 85 off ramp in Gaston

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Dianthus anatolicus 'Lunatic Fringe'

Lunatic Fringe

Several years ago, we grew seed of Dianthus anatolicus, native from Tibet to Turkey, and while all were interesting and deliciously fragrant, one, which we named Dianthus ‘Lunatic Fringe’ stood out from the rest for its exceptional floral show, and heat/humidity tolerance. Our original plant, pictured below, is now almost five years old and still

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Daphne cneorum 'Pygmaea'

How Low can you Grow?

Flowering now is the amazing groundcover selection of the European daphne, Daphne cneorum ‘Pygmaea’. For years, we were told this wouldn’t grow in our climate, and if you treat them too well, they will not thrive. This is in flower now, growing in our dryland berm, composed of 50% Permatill gravel, 25% native sandy loam,

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