Being so far south, I notice the difference in color. I think the combination of day and nigh time temps, sunlight and humidity all contribute to the variations in bloom color. I think all combined can make for a washed out looking color on a bloom and still be blooming on a very healthy plant. Some of the best colored blooms in catt and laelias are seen in Calif and Hawaii, where the nights are cooler with warms temps during the day. Couple that with a high humidity level...and you get spectacular color.
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