South 2nd Ave., Covina, CA ~ CallCovina CA West Covina CA Glendora CA |. E West Covina Parkway West Covina, CA Heavenly Flowers by Grace N Azusa Ave Azusa, CA West Covina, California Hardiness Zone Map. West Covina Border: Zone 10a 30°F to 25°F: A hardiness zone is a geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone.
Planting calendar for West Covina, California. Find the best dates for planting and transplanting vegetables and fruit! Our free planting guide calculates the best dates for sowing seeds indoors and outdoors, and for transplanting seedlings to the garden- all customized to your location. Based on frost dates and planting zones.