Early Season Maintenance for Roses
By now, your roses should have been pruned and fed with a good granular food, Rose-Tone and Dr. Earth Rose and Flower are both excellent choices. Don’t panic if you are a little behind schedule, it’s not too late to prune and feed. If you have already pruned your roses, they may want a second going over.
If you grow Hybrid Teas, Grandifloras, Floribundas or other disease-prone roses, now is the time to start a disease prevention routine. Once you see the spots, it’s too late! First, remember to water at the base of the plant, not the foliage. Many diseases strike when leaves have been wet for several hours, so morning watering is best as it allows the roses to dry off quickly. To help prevent black spot, we recommend Neem oil or Neem-based sprays. The key is prevention, so now is the time to start.
To prevent powdery mildew, watch the weather. Mildew strikes when roots are dry and the air is hot and humid. When humid weather hits, keep your roses well watered.
To battle back aphids and other rose-loving bugs, blast them off with a squirt of water, an application of insecticidal soap, or some voracious lady beetles
If you grow rugosas, keep an eye on their foliage. If it seems yellowish or light green, give them a handful of Epsom salts worked into the soil. That should green them up quickly.