Thank you ctcarol, DomehomeDee, and microb for the replies. Sorry for my late reply. I still haven't exactly figured out the navigation of the NGA site.
I've only been in SD for a year. I spent the past 25 years in Minnesota but the growing season isn't much different. The last frost date here is May 15th and first frost is Sept 28th.
As in years past my Epis spend the summer outside in the shade. Either under trees or on a porch. Never in full sun. I wonder if I'm not watering them enough. I only water them every 3 weeks or so. Sometimes a month goes by before I water them.
For MN winter they were in South and West facing large windows. Now I'm in an older home with smaller windows & lots of shade.
The picture is of the oldest plant. I received it in 1995 as a start from my moms plant which as far as I know never bloomed either. Mom did know it was an Epi, she called it an orchid cactus. About 5 years ago I forgot to bring it in and a hard freeze killed it. I brought it in the house and watered it hoping a miracle would happen. It did, but the plant has never looked the same. It developed a lot of long thin spine covered stems that never flattened out. I finally read somewhere that I should cut those out, which I did and it started developing the flat stems you see in the pic. But I have to periodically go in and do it again. Both plants you see here were potted in the small 4" pot. A week ago I repotted into the larger pot. I was really surprised that the roots weren't wound around the inside the the small pot. When I unpotted it the plant fell out in 2 pieces so both pots are the same plant.
Any suggestions will be appreciated.
