Easter cactus wilt
Early last spring I purchased an Easter cactus in a 4" plastic pot. It has grown well and I transplanted it into a larger hanging plastic pot where it has continued to grow under a large oak tree until the last week, when I noticed that 3 of the 4 plants were wrinkled and drooping instead of stiff and waxy. The temperature has climbed into mid or high 90s and we had a light rain three days ago. I only water when my moisture meter reads half way between wet and dry or drier. The stems are not soft. The same thing happened to my Christmas cactii last year. They dropped a lot of their branches but regrew and bloomed when I returned them to the greenhouse in the fall. Do you think I am keeping them too moist or is it the heat? Do I need to add more sand or pearlite to the medium?