Heat Effects on Flowers
1951 Today the Lancaster Era newspaper out of Lancaster Pennsylvania reported on rose care during the heat of the summer.
Here's an excerpt:
“Hot Summer weather is not a serious problem to healthy rose plants as long as a regular schedule of care is followed. Giving roses an adequate water supply is probably the prime responsibility during these hot dry periods. A plentiful supply of water is important to keep up the blooming rate and growth and to build energy which will mean better plants next year.
...The best method is to let the hose slowly trickle over a board at the base of the plants. … An important thing to remember is to avoid wetting the foliage of rose plants when watering the beds since this practice often contributes to the spread of fungus diseases. Naturally, a good damp soil attracts weeds, but these unwelcome guests may be discouraged by mulching with … composted grass clippings, buckwheat hulls, ground corn cobs, or other available material.“