Question From: T. Martinez - Los Lunas, New Mexico, United States
Q: I have a knockout rose and it looks like it is dying from something. No one has been able to help me with the problem Can you look at the picture and tell me what you think is wrong with it? Thank you very much. Live in New Mexico where I believe it is a zone 7.
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I can't see any obvious signs of disease or pests, so I have to think it's a cultural problem. Roses grow best in full sun, however excessive heat and wind will take their toll. The plant is not thriving and some of the leaves look as if they have been scorched. One key to success to keep the soil moist at all times and not allow the plant to wilt. In a container that may mean watering twice a day. When the temps rise about 90 degrees it may be best to move it where it will be out of the direct sun of the afternoon. Check out the website Waterwise Gardening from David Salman of High Country Gardens in NM (http://www.waterwisegardening.com/archives/259 ) In fall you may want to repot your rose adding more organic material to the pot. I also suggest you follow David's recommendations for feeding. Good Luck and Happy Yardening, Nancy