I got a Prosthechea radiata roughly 2-3 months ago, have it set up under a grow light and weekly watering. The psuedobulbs were a little wrinkled when I got it, and they have not plumped out. Is this typical, or a continued sign that it needs more water?
If the pseudobulbs were wrinkled, they aren't going to plump up. But weekly watering may not be enough. What is the medium that you have it in? Temperature and humidity? I grow mine outside (coastal southern California), daytime humidity usually around 50% at mid-day. Temperatures go from winter lows of close to freezing (35 deg F is not all that rare) and summer highs in the 90's F . I use medium bark in plastic pots, water every 2 days in summer, maybe 3 days between waterings in winter.
OK, thanks - I was looking at photos and some were smooth and some wrinkled and not a good baseline. I have it in medium bark under a grow light in Seattle fall temps, so pretty consider high 60s-low 70s indoors.