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There are several things you can do to ease your plants through a dry summer and even improve your landscape at the same time. While installing and using a drip system is a no-brainer, there are other steps you can take if you find yourself in a real pinch. Here’s how to make every drop of water count.
First of all, irrigate slowly, deeply and less frequently. Slow soaking limits runoff and encourages plants to develop deep root systems that are better able to tolerate drought. To minimize evaporation, irrigate in the early morning or evening. If you have to use a hose for watering, build soil berms around young trees and shrubs such as roses to concentrate water on the root zones. Fill the basin so the water soaks in.
It's also important to check the soil moisture occasionally between waterings to make sure the plants actually need to be watered as frequently as they are. Dig down one foot with a trowel or spade and feel a handful of soil. Another way to test moisture is to use a metal sampling tube to "read " the soil. Simply push it into the ground and twist it back out. It will show a 10-12" cross section of soil, showing how wet or dry the soil actually is. If the top 2 inches of the soil sample are dry, it's time to water.
If you don't have a drip irrigation system, consider using soaker hoses or root irrigators to concentrate water in specific areas. You can also be water-wise with pots by using glazed, foam or plastic pots, which are less porous and hold moisture better. Nesting smaller pots inside of larger ones will also create extra insulation.
If you have a grass lawn, raise your mower height. Taller grass shades the soil and will help reduce evaporation. Instead of high-nitrogen lawn food, apply a low-nitrogen iron product to help prevent excessive growth and improve the lawn's tolerance to heat stress.
Consider applying mulch to your garden. It helps reduce evaporation, insulates the roots from hot temperatures, helps prevent weeds and just plain makes a garden look better. We recommend applying a 2" layer of for best results.
If you face a real pinch in water availability, survey your landscape and give the highest priority to established trees and foundation shrubs, because they would be the hardest to replace. With just a little extra diligence, most gardens will make it through a drought period just fine.
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