Orchid of the Month for March, 2019
Dendrobium Andrea Millar x convolutum
By Sheryl Harris
I grow orchids in the house in a homemade light garden and on the kitchen table with both an east facing and south facing window, where Phalaenopsis grow beautifully. When I bring anything else home, I don’t always know what to expect.
Many orchids in my collection come from the raffle table. When all the phalaenopsis and paphiopedilum are gone, I next turn to smaller dendrobiums, if available. When I brought home Den. Andree Millar x convolutum. I got a very pleasant surprise. It fits under the lights in the light garden and blooms like crazy. While researching this plant, I discovered it also known as Green Flash.
This is a free blooming, compact orchid that is 8”-10” high when mature. On my plant, each blooming pseudobulb had one spike with several 1” flowers that are chartreuse with a purple striped lip. Research says it blooms twice a year for two to three months. I haven’t had my plant a year yet, so time will tell what it will do, but it has already bloomed twice. Since I don’t have many blooming orchids in winter, this one really stands out.
This is a Latouria type orchid that likes intermediate (warm) temperature and medium light and prefers 50-60% humidity. I like to let this orchid get nearly dry before watering. For fertilizer I use 20-20-20 at half strength at least twice a month, but more often during the growing season.
When I repot, I plan to use New Zealand sphagnum moss and a clay pot. The humidity level in my home is low, so it helps to use moss in a clay pot. Orchids placed on a layer of pebbles with water held just below the bottom of the pots also increase humidity.
One of the things I like about obtaining orchids from a professional grower or from a hobbyist in our Society, is you can find ones with unusual flowers you won’t find in a big box store. With such a wide variety of orchids, you can always find something beautiful or unusual that grows and blooms in your growing environment.