Catteleya Orchids Require Short Days to Flower
December 2, 2018
A few orchid species require short-day photoperiods in conjunction with cool temperatures to flower, such as some species of Cattleya, Dendrobium, and potentially some species of Phalaenopsis.
Catteleya orchids are large specimens that love a cool spot.
PC: Leslie F. Halleck
For these types, you’ll need to combine cooler temperatures and shorter daylengths from midfall through winter, then lengthen your lighting period again in spring.
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