Green Horizon Landscape
Santa Monica, Los Angeles County, CA
Design with Hadaa
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Working in Santa Monica
Climate & hardiness zone
Santa Monica sits in USDA Plant Hardiness Zone 11a, with minimum temperatures of 40–45°F — the warmest zone classification in California's populated areas. Essentially frost-free year-round, Zone 11a supports tropical and subtropical plant material that fails everywhere else in the state. Irrigation runs every month of the year, and water-efficient design is not optional — California's conservation requirements apply regardless of zone, and the year-round growing season means year-round water demand.