I found an orchids cactus in the house I rent. It was probably dormant for a year+. When I brought it into the main house it bloomed. Hasn’t bloomed since which has been about a year. Landlord said she couldn’t make it bloom when she had it. Does it need a consistent dormant phase every year?
An Orchid Cactus needs to go dormant for about 8-10 weeks during the winter months if you hope to have it bloom the next year. Here are a few hints:
During the winter, lower the temperature to around 45-50 degrees, water sparingly, and do not fertilize
In the winter, an Orchid Cactus prefers total darkness during the night.
Once you return your Orchid Cactus to its usual spot in bright indirect lightVery few houseplants should be placed in direct sun. High light refers only to bright indirect light since direct sun often burns the leaves of indoor houseplants. An area that is too hot and dry encourages Spider Mites and causes blooms to quickly fade. A northern exposure really doesn't provide enough light for high light plants. These plants need to be placed directly in front of an east-facing window, within 1-3 feet of a west-facing window, and within 5 ft. of a south facing window. A high light area has over 300 ft. candles of light., start feeding it in the early spring and through the fall with a plant food high in potash. This encourages more flowers.
You should try to repot your plant every other year or so (in the Spring and never when it’s blooming), using a pot just an inch or two larger. These plants bloom more when a little root-bound.