Is this cold damage or what?

[avian]

Originally Posted by Leafmite

Some Cattleyas do make buds in dried sheaths, even months after the sheath has dried...just depends on the ancestry of the orchid. Even if these ones do not, the sheath indicates that it is now blooming size...if it is getting good care, the next growth that matures should bloom.

Some of my Cattleyas that I have had for a few years have dried up sheaths, too. What causes this? Not enough light, not enough nutrients, not enough water, or something in the plant? Out of three Cattleyas I have in the same location, only one blooms like clockwork every March whereas one of the others has multiple empty sheaths and the other one has never sheathed. They get the same care, same amount of light and same nutrients. They do put out new leaves and roots. Maybe all of their energy is going towards that.

[estación seca]

Lack of Catts flowering is most often related to not enough light or incorrect day/night length. Some hybrids may flower with less light than others, depending on ancestry. When you see commercial greenhouses full of Catts you realize the leaves are often closer to yellow than green from high light.