To know when to water your roses, keep in mind that the weather and the type of soil dictate when to water. Sandy soils need abundant water. In other kinds of soil most roses, other than newly planted ones, will tolerate a two week drought.
It is best to only use a soaker hose or a similar water providing device around the roots. Overhead watering can cause damage to roses in full flower.
When the plants are not in bloom, a sprinkler that gives a fine mistlike spray can be used. To prevent mildew, water early in the day so that the plants will be dry by nightfall. Do not use a coarse stream of water that will splash soil on the leaves, since this can spread soil-borne diseases.
Additionally, spray your flowers with a general-purpose insecticide-fungicide especially for roses. Or else spray one treatment at a time, as many experts recommend, because you are able to target a pest or disease to reduce the impact on beneficial insects. Use a sprayer that gives a fine mist; the tank-type pressure sprayer is best. Spray early in the growing season, and repeat according to instructions. Cover the upper- and lower-leaf surfaces, as well as surrounding soil.
Article by the Editors of Reader's Digest
