apply 1 tablespoon of sulfate of potash (0-0-25) to each plant around march 1st
fertilize weekly with 1 tablespoon of sulfate of ammonia (21-0-0) per plant acidify garden soil. do not use on potted plants
watch for early symptoms of mildrew and rust, and remove afftected leaves by hand
irrigate rose beds with 1.5 inches of surface water twice a week
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