Double Knock Out Rose
image by H.B. Dean
Like most flowers, roses suffer during periods of extreme hot weather. Even the healthiest of roses will droop during high temperatures. While proper care won't prevent the rose leaves from drooping, there are things you can do to help the rose survive the drought.
Water the rose on a regular basis. Roses need about 1 inch of water a week, which causes the rose to send roots down deeply. Water the rose early in the morning, to reduce water loss through evaporation. Direct the water toward the soil around the rose and avoid getting the leaves wet to reduce moisture-related diseases.
Use an irrigation system. Soaker hoses eliminate water loss through evaporation and send the water directly to the rose's roots. Loop the hose around the base of the rose, placing it about 1 foot away from the rose on all sides.
Add a 1- to 2-inch layer of mulch around the rose. Move the mulch so that it does not mound up around the bud union, which is the spot where the rose's roots and canes meet. Mulch helps retain soil moisture and adds nutrients to the soil.