horticulture myths

Getting a Handle on Handelia

Here’s another of those plants that virtually no one has either grown or even knows about. Handelia trichophylla is a little-known monotypic member of the aster family (Asteraceae). Not only does it have hairy, silver foliage, which usually spells certain death in our summers, but it hails from the “stans”, which include the low rainfall

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A Healthy Melaleuca

We were thrilled to have a great flower show this year on the most winter hardy honey myrtle we grow, Melaleuca ‘Wetland’s Challenged Mutant’. This introduction from Desert Northwest, is either a selection of Melaleuca paludicola, or a hybrid with that species. Most of the other “hardy” melaleucas (formerly, Callistemon) died to the ground this

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A Little Daub will do you

Looking really lovely in the garden now is Juniperus x pfitzeriana ‘Daub’s Frosted’. This selection of the hybrid between Juniperus sabina and Juniperus chinensis was introduced by Oregon’s Mitsch Nursery in 1987. Our 18″ tall patch has spread to 10′ wide in less than 5 years. All of those trusted on-line sources say it matures

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Spiny is as Spinosus Does

In 60 years of gardening, I’ve yet to seen a nursery that offers Acanthus spinosus, who actually has the correct plant. 100% of everything in the commercial trade is actually a hybrid of Acanthus hungaricus and A. spinosus, which looks nothing like the true species. Even authoritative on-line reference sites which should know better, all

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Splendor in the Cracks – Urophysa

I’m betting that even the most seasoned plant collectors probably haven’t grown or even heard of Urophysa henryi. This odd generic member of the Ranunculaceae family hails from China, where it can be found only in a very few scattered populations, hanging out from cliff-side karst rock fissures in Guizhou, Sichuan, Western Hubei and into

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Cuckoo for Coco and its Kids

One of the nice surprises this winter has been the performance of our hybrid Magnolia grandiflora x Magnolia coco. This 2019 seedling came through the recent 11 degrees F looking great, despite half its parentage being rather tender. While Magnolia grandiflora is certainly winter hardy here, the other parent, Magnolia coco is “reportedly” not hardy.

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Dinner Jackets

This week, we fielded a call from our garden staff that there were large yellow jacket (Vespula maculifrons) nests in several arborvitae near where they were working. Knowing how aggressive and toxic the stings of these native vespid wasps can be for humans, they had requested help in getting the nests eliminated. When Patrick arrived

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