Extension

It’s no secret that Oklahoma is hot and dry in the late-summer months, and this year is no exception. From very little precipitation to triple-digit heat, gardeners are struggling to keep their landscapes looking good.

To survive the summer heat, plants must have some reprieve from hot, dry periods. Since Mother Nature isn’t cooperating, gardeners may have to work some of their own magic. Here are a few tips to help a struggling landscape survive the rest of the summer.

• If irrigation is limited, some areas may need to be sacrificed for the good of others. Topping the list of priorities should be established trees and shrubs because they take years to replace when one is lost. Perennials and seasonal plants may come second on the list of priorities. Remember, well-established bermudagrass lawns can tolerate quite of bit of drought and will recover once irrigation resumes.
• Identify the root zone of important plants. There’s no need to water areas that aren’t of any benefit. Trees and shrubs typically have roots that extend at least to the drip line and often extend far beyond it.
• Apply water directly to the ground and root areas whenever possible. This will help eliminate water loss through wind or evaporation. Plus, this method will keep the foliage dry, thus reducing foliar diseases. Drip systems or a soft-spray nozzle are generally more efficient than pop-up sprays. Drip systems are inexpensive, easy to install and available at garden stores.
• Water deeply once or twice a week, depending on the soil type. Early morning or late evening are the best times to water. Deep watering encourages deep root growth. Keep an eye out for water runoff to avoid wasting water.
• Set the lawn mower up a notch or two. Taller grass shades the roots. Do not fertilize during periods of drought.
• Three words – mulch, mulch, mulch. Add 1-3 inches of mulch on landscape beds and around trees to keep the ground cooler, block weeds and conserve moisture. Be sure to avoid placing mulch in direct contact with the base of plants and trees to help avoid rot. Check with your local city office to see if they offer free mulch.
• Plant natives or well-adapted exotic plants. Native plants withstand Oklahoma’s droughts and hot weather. Research which native plants do best in the area.

With careful attention, gardeners can help their landscapes beat the heat and drought and survive the rest of the summer.