Dendrobium xsuffusum is a natural hybrid between Den. kingianum and Den. gracilicaule. The flowers are 5/8"/1.6cm across.
Both are Australian species in section Dendrocoryne, which includes Den. speciosum. It is supposed to combine the best features of both species: pink color and strong fragrance from kingianum, and floriferousness from gracilicaule.
This plant came from Andy's Orchids the first week of December 2020. It is 20"/51cm tall. The Den. jonesii in front of it is in a 3.25"/8.25cm pot.
I saw the most recent growths were mature, and it had flowered before. This kind of Den. is encouraged to flower by bright and very cool winters. I put it outside on my patio. It got several hours of direct winter sun, and I watered it weekly. We had no frost this year; it threatened for a few nights, and I brought the Australian Dens into the house for a week.
My plant has tall, gangly growth with small, dull-colored flowers from gracilicaule, and not much from kingianum other than a faint whiff of fragrance. I'll see whether I can keep alive and flower it again, hoping it will improve. I am very underwehelmed.
Dendrobium xsuffusum
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