A lot of people write to only spray in the morning, so they are dry by nightfall, so as to minimize fungus problems. Last summer I sprayed my Vanda seedlings morning and night. No fungus problems. Unless you're right on the coast, where it stays cool and damp all the time, I don't think it matters for you.
The more sun the better, BUT - if there be little air circulation, the leaves quickly absorb sunlight and get much hotter than the surrounding air, and they will burn. If you put a fan so it blows directly on them, they won't get much hotter than the surrounding air.
|