Q: My 'Knock Out' roses bloomed like crazy, but some of the leaves don't look so good. They have smallish irregular holes clear through. Late last summer, one of the bushes had aphids, but I didn't ...

Q: I planted these Knockout roses two years ago. They did fine for a while, but this year they have struggled. I treated them with a name-brand insecticide and fertilized and watered them as well, but ...

Q: My Knock Out roses are blooming beautifully, but now something is starting to eat the leaves. What is it, and how do I stop it? A: They are difficult to see, but tiny whitish green worms with ...

My Knockout roses are not doing well. First I had to treat them for rose slugs eating the leaves. Now the leaves of two trunks are fading to a pale green. Are they dying? How is that possible with a ...

The Knock Out rose has become amazingly popular over the past 10 years. This rose has singlehandedly changed the market for roses since its introduction and ushered in a whole new way to look at roses ...

Last year, I noticed the yellowing and spotting of some of the leaves on my Knock Out roses. The same thing is happening this year. Can you diagnose and suggest what to use? For some reason, I thought ...

Question for Dan Gill: Last year I noticed the yellowing and brown spotting of some of the leaves on my Knock Out roses. The same thing is happening this year. Can you diagnose and suggest what to use ...

Q: Why would all the bottom leaves of our 'Knock Out' roses be turning brown and dropping off? They're in full sun, but we water them every few days. Is it just the extreme heat they went through? A: ...

The Knock Out rose is likely the most planted rose in southeast Louisiana landscapes. Since its introduction in 2000, the Knock Out rose has ushered in a whole new way to look at roses and use them in ...

“You are never too old to set another goal or to dream a new dream.” – C.S. Lewis. Winter is here, thus giving gardeners plenty of time to plan for the upcoming months and specific maintenance ...

Roses are a good shrub for Colorado. The amount of sun is perfect. However, over other varieties of roses, there are few roses, other than shrub roses, that require some kind of daily care. Picking ...