M.B.: Try getting snippy with it. Lavatera, or tree mallow, is an easy-to-grow, shrubby perennial, but it can be short-lived and die out after three or four years. I have found that pruning in the ...

Q:Our tree mallow, which we have had for years, is being damaged by something we haven't seen before. From a distance, it looks like rust, but up close it appears to be a psyllid insect or a mite. We ...

Description: Like any other garden tender, I yearn for flowers that display vibrant color through every season. The usual path to this achievement is to either plan a complex collection of bulbs, ...