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Photographer: GardenSoft
Physical weed control, including mulching, or hand removal protects the watershed from harmful chemicals.
An easy water-wise improvement in lawn areas is to change high output spray sprinkler nozzles to low-flow rotators.You'll have less runoff and be less likely to apply more water than is needed.
Drip and other smart irrigation delivers water directly to roots, allowing no excess water for weeds.