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Managing your Landscape Watering

Water efficient irrigation does not end once the plants are in the ground. Seasonal watering is an important part of reducing your landscape water use. The following watering schedule will help you save water, time, and money. You might even want to print out this page*  and place this chart for future reference.

*Opening and printing this page requires the Adobe Acrobat Reader. To get a free copy, visit www.adobe.com and select "download Acrobat Reader."

    Landscape Watering Guidelines

How much & how often
Water to the outer edge of the plant's canopy and to the depth indicated. Watering frequency will vary depending on season, plant type, weather and soil.

Seasonal frequency - Days between waterings

Water this deeply (Typical root depth)
Spring
Mar - May
Summer
May - Oct
Fall
Oct - Dec
Winter
Dec - Mar
Trees Desert adapted 14-30 days 7-21 days 14-30 days 30-60 days 24-36 inches
High 
water 
use
7-12 days 7-10 days 7-12 days 14-30 days 24-36 inches
Shrubs Desert Adapted 14-30 days 7-21 days 14-30 days 30-45 days 18-24 inches
High 
water 
use
7-10 days 5-7 days 7-10 days 10-14 days 18-24 inches
Groundcovers 
& Vines
Desert adapted 14-30 days 7-21 days 14-30 days 21-45 days 8-12 inches
High 
water 
use
7-10 days 2-5 days 7-10 days 10-14 days 8-12 inches
Cacti & Succulents 21-45 days 14-30 days 21-45 days if needed 8-12 inches
Annuals 3-7 days 2-5 days 3-7 days 5-10 days 8-12 inches
Warm Season Grass 4-14 days 3-6 days 6-21 days 15-30 days 6-10 inches
Cool Season Grass 3-7 days none 3-10 days 7-14 days 6-10 inches

These guidelines are for established plants (1 year for shrubs, 3 years for trees). Additional water is needed for new plantings or unusually hot or dry weather. Less water is needed during cool or rainy weather. Drip run times are typically 2 hours or more for each watering.

For more information, contact Utilities Conservation at (480) 644-3334 or (480) 644-3306 or via e-mail to donna.difrancesco@cityofmesa.org