When to start watering perennials. When to fertilize and how?
I consider myself a novice gardener. I am really starting my perennial gardens here in a new house. I planted many last year and most are already showing good signs of growth. So what I am confused about is when to start feeding and watering. Though the weather has been beautiful lately we could certainly get some more cold spells and freezing temps at night. So is it inappropriate to water until freezing temps are much less likely? My beds are all very well draining (sandy soil). So even rains only keep them moist on a fairly short term.
And fertilizer.... i have heard that the granular is the way to go but some of them are dependent on temperature to activate so again if I fertilize now it probably won't do any good until it warms up more. I don't know the needs of all my plants but I do have cone flower which I've heard are heavy feeders (and btw are one of the plants I haven't seen any signs of life for me yet).
Any advice in these matters?