Question
I bought four double-bloom knockout roses from Costco in Austin, Texas about two months ago. For three weeks, they bloomed beautifully and then just quit. Any thoughts, suggestions?

Answer
Roses will always go under some sort of stress when planted in a new location as the micro climate will be different. Your roses just need time to get settled in. And it could even be that they are not getting enough water to help them settle in. If the weather is hot they they will need more than what you give them regularly. High heat will also stop roses from blooming. However they will return to normal when they either settle in or the weather gets a little cooler.