What Plants Grow Well In 91803?
The USDA hardiness zone is 10b in the 91803. This zone is a measure of the lowest temperature that a plant can survive, and helps determine what plants would grow best in the area's climate. Below you'll find a list of the best plants for 91803's climate based on this hardiness zone.
Learn more hardiness zones on our page for Alhambra's growing zone.

Deluxe Plastic Watering Can

Shiitake Mushroom Kit

Stainless Steel Garden Tool Set

Hydroponic Garden Grow Kit

Cluck Around Sign
Trees for 91803
Fruits for 91803
Flowers for 91803
Vegetables for 91803


Planting Advice for 91803
Have questions about planting in 91803's climate? Check out our FAQ below for answers to common questions about growing plants in the area.
Zip code 91803 is in USDA hardiness zone 10b, which means plants there can survive temperatures as low as 35 to 40°F each year.
Best Time to Plant in Alhambra
Check the growing calendar for Alhambra at the Old Farmer's Almanac to see the best planting times for the region.

Seed Starting Trays

Brass Watering Can

Deluxe Plastic Watering Can

Stainless Steel Garden Tool Set

Shiitake Mushroom Kit

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Other Towns in California
We have plant recommendations for most towns in California. Select a town from the list below to find the best plants for your area based on the latest climate information.
Best Plants By State
California not the right state? We have plant recommendations for every state, town and zip code in the United States. Choose a state from the list below to find the best plants for your area.
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