Question
i have 8 knock out roses all in large pots set in a row at the front of our yard. they are all some-what small still, so i transplanted them from their original pots to much larger ones, and am waiting until next year to put them in the ground. i live in Houston TX, and the weather has gotten super hot, super fast (100+ degrees). we have had NO rain in about 2 months as well, so i am watering them all every other night. all roses are getting the same amount of water, and i am careful as to keep the water on the soil only (not the foliage) and i am watering only after dark to prevent burning. but one of the roses leaves are yellowing and browning at the edges of the foliage. its one whole side of the rose, but the other side is fine. what could be the problem?

Answer
High heat or sudden higher temperatures, will always put roses under stress. And no matter what you do you can't stop it or save them from getting the tips of the leaves burnt or just looking pathetic and limp. You are doing the only thing you can do and that is watering them well daily. Transplanting is another situation that roses re-act negatively to and some cooler weather would have been nice. However the heat has also been hard on them. They will survive but they will probably not flower well as roses save themselves by not making flower buds and many times they will even drop their leaves. They won't die but will look sad until the cooler weather returns and then they will act normally.