With the help of this report, one can select winter-hardy roses that are much less likely to need to be sprayed with pesticides to control diseases or insects. Based on research in USDA Hardiness Zone 4a, this report rates 196 cultivars and species for floral traits, bloom pattern, plant size and habit, disease and insect tolerance, and winter injury. Discusses factors affecting flowering ability, winter survival and susceptibility to disease and insect pests. Section on cultivation discusses and makes recommendations for site selection, buying stock, planting, watering, mulching, fertilizing, pruning, winter protection and pest control. Includes color USDA Hardiness Zone map for USA and Canada, fact sheet on rose diseases, and 1975 Arboretum Review that contains hardiness observations on many roses not included in the recent study. Softcover. Includes 50 color photos, 14 drawings, 6 graphs and 9 tables. For homeowners, amateur rosarians, nursery and garden center personnel, landscape designers, park and public garden personnel, Master Gardeners and educators.
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