I don't have a lot of experience, but it sounds like they may need more water. I've found the skewer method linked at the top of the forum is a good way to learn to gauge when watering is required.
I've found how I water makes a difference too. If I just let the water run through the bark I have to water more often (twice a week) but if I soak the plant for 5 minutes or so and then let the water drain out I can get by watering weekly. If your media is drying out fast, and you're watering by letting water run through the pot you may have to water more often.
If you have the phals in clear pots, you can also look at root color, when they look silvery rather than green, it's time to water.
I've read Oncidiums like to be wetter than phals. I try to water my phals as soon as the pot goes dry, but I try to water my assorted Oncidium hybrids when the bark is still at the moist stage.
Last edited by aliceinwl; 02-04-2018 at 03:17 AM..
|