Regional Gardening Reports :: National Gardening Association

Southern California Coastal & Inland Valleys

April, 2008
Regional Report

Shows & Events

Book Discussion and Signing
Los Angeles garden writer Nan Sterman will discuss and sign copies of her newest book, California Gardener's Guide, Vol. II, at Roger's Gardens in Corona del Mar on Saturday, May 31, 2008, at 9 a.m. For more information, call (949) 640-5800; or go to:

Clever Gardening Technique

Checking Depth of Lawn Watering
To test how deeply your irrigation water is penetrating in your lawn, water for the usual length of time and then push a trowel into the soil up to its handle. Push the soil clump to one side, or lift it out completely, and look at both the depth of the roots and the water line in the soil; it will be dark toward the lawn surface and lighter where it's dry. The water line should be just past the longest roots. If it's not this far down, replace the clump, water again, and test another spot until the water line is below the roots. Adding all these irrigation times together gives you the correct amount for each watering. Don't water again until two-thirds of the root length is dry. This may mean that you can double the time between waterings and the grass roots will not suffer during the summer heat.


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