Yup...maybe have to add in the Queens' Ransom too.
I have that happen with my hoyas sometimes....when I pot them up TOO much. Epiphytes and Semi Epiphytes seem to like having their pots quite small...so they get rootbound. I could never grow anything in that mix... Have you looked at the white stuff on the roots with a magnifying glass? Are they mealie bugs (root mealies) or a fungus. The fungus is probably OK. It also looks VERY dry...even the root ball looks dry. Tropical plants, in the tropics, grow almost hydroponically...their roots have to seek out nutrients and they grow wherever they can find some decomposed organic matter. I would mix that peat mix (Sunshine/Pro Mix....) with small chips of bark...yes, the stuff they use for mulch in landscaping works well...and perlite. I would take the potbound roots and soak them in water with a bit of fish emulsion or chicken manure and add about a Tablespoon of molassas or sugar.. Medinillas don't mind wet IF it isn't soggy ...they need oxygen around their roots....
Hope this helps.
Carol
