Mttsa. Dark Star --yellow leaves?

[LizK]

Hi everyone. I'm new---haven't even introduced myself yet! I'll get to that, but in the meantime, I've got a question. My Mttsa. Dark Star has yellowing leaves. Otherwise it is a healthy plant. It bloomed last year and now has new growths. The leaves on two of the psuedobulbs are yellow--from the bottom right to the tips. The psudeobubls still look healthy though. I'm confused--what to do! Should I cut the leaves off or leave them alone? When I repot (possibly this Spring) should I remove the psuedobulbs? There was a time when I know I was underwatering (pleated leaves). But, the yellow leaves are not the pleated ones. Thanks, guys, for any info. Liz

[Ellen]

The old yellowing leaves will eventually drop off. The leaves on oncidum-type orchids have a natural break point just above the pseudobulb, so you will see the dead leaves separate at that point. The bottom part of the leaf will remain around the pseudobulb as a sheath. No need to remove anything at this time.

[LizK]

Thank you, Ellen. I will leave the plant alone! Liz

[Cynthia, Prescott, AZ]

The leaves coming from the base of the bulb have a shorter life span than the ones coming off the top of the bulbs. Hope these are from the base. You don't want the plant left with less than 3 bulbs iin a row, and 4 might be better, with or with out leaves.