Tolumnia calochila
Didn't want to hijack u bada's thread on same. One day of Andy's 12 days of Christmas sale December 2015 was Oncidiums. Because I had been doing well with a tiny Tolumnia variegata seedling from Olympic Orchids last summer, I ordered from Andy's T. calochila, guianensis, sylvestre and urophylla, all blooming size. The last three are spiking now, and I will show pictures eventually. Their fans are several times larger than the calochila. The tiny calochila pictured hasn't spiked, but seems happy. Last night, at our orchid society meeting raffle, I won a T. velutina, which I put with the others. Its fans are tiny, the scale of the calochila.
I have them hanging in a window, where they get 4 hours or so of morning sun, then bright shade. Humidity is 50%-70%, sometimes higher at night. In the last week, I put up 30% shade cloth outside the window, because daytime temperatures outside have been low 80s to 90 F / 23-32C. Some Vanda seedlings got burned spots. I spritz them with rain or fertilizer solution (MSU at about 45PPM nitrogen) 1 or more times per day, and soak them in a bucket several times per week, for 4-12 hours. They dry out quickly.
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