Watering Gardens and Lawns in 100 degree Spells

I found a great article on watering lawns put out by the Univ. of Missouri. It should obviously also apply to gardens.

Here are some highlights.

– Use a timer. “Some studies have shown that the average homeowner applies 2.5 times the amount of water that is required” Use a small can to measure how much water is applied to the area.

– “Most soils in Missouri will infiltrate only about ¼ to ½ inch of water per hour. If your sprinkler system delivers more than that amount, move it to a different location more frequently.”

– “Dormant lawns should receive at least 1 inch of water every two or three weeks during summer to prevent complete turf loss.”

–  “Best time to water a lawn is from 6 to 8 a.m.”

– The table below is what the author sent me. The article’s table is wrong.

Lawn type

Green Turf1
inches of water per week

Dormant Turf2
inches of water per week

Perennial ryegrass



Kentucky bluegrass



Tall fescue



Zoysia or bermuda






1Lawn remains green and growing
2Lawn may turn brown, but will not die


Here’s the entire article:


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