Oncidiums need twice as much water and light than phals, and won't do as well in the same window. Put it back in the sunnier window and then feel the leaves. If they're hot, move the plant back a few inches (not feet. Light drops off dramatically every inch away from the window). Keep checking the leaves. If they aren't hot, then the light is okay for them. If hot, move them back a little.
As Royal says, Oncidiums like tight shoes to the point where they're top heavy. Slip the pot into a heavier pot for stability. Repot in the spring when the roots start growing again.
As White Rabbit says, put a trimmed-down shishkabob skewer into the moss and let it stay there. When you think the plant needs water take it out and touch it to your cheek, lip, or the back of your hand. How wet or dry the stick is before watering will depend on the type of orchid. For oncidiums, the stick should be damp. They don't like to dry out and can take an alarming amount of water. From the look of your wrinkled bulbs, the plant has been underwatered. As Skyheaven says, you might try every four days in the winter, and three times a week in summer. The old bulbs may not plump out so much, but the new bulbs should be fine.
Last edited by Orchid126; 01-28-2011 at 03:23 PM..
|