Epiphyllum not blooming
I have an E. "Unforgettable" that's at least four years old. It's grown like flat spaghetti dangling to about three feet. It's in bright light but not direct sun. I have it in an unheated sun room where days in winter may be 55-70 and nights in the 50's and possibly high 40's but rarely. It's growing well with no signs of insects or disease nor any stress. It just doesn't bloom. To be honest, the only thing about Epiphylum, to me, are the flowers, because the plants really aren't very attractive. Any suggestions are welcome.