I definitely appreciate everyone's input.

Here we frequently have temperatures above 100 with very little rainfall in Summer. I have the hardest time keeping my other plants watered even the drought tolerant ones. I'll just have to really amend my shade garden because the soil is 100% clay and with three large cedar trees, the soil stays dry. I have aspidistra, English ivy, nandinas, and liriope, so the bletillas will add some nice color. This is the first time I've grown a hardy orchid so I really hope I'm successful? Thanks everyone.