| One more item of info. Commercial growers often treat their plants with hormones to make the flower spikes just the way they want them, probably longer for some varieties, so that they can be trained high above the plant to cascade downward. Maybe your plants are just running out of the effects of what the grower did to them. I have differences in flower spike lengths on many of my non-Phals, but it is usually the opposite, with lower light making longer spikes/stems/scapes.
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Cynthia
Prescott Orchid Society  |