What Plants Grow Well In 91103?
The USDA hardiness zone is 10b in the 91103. 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 91103's climate based on this hardiness zone.
Learn more hardiness zones on our page for Pasadena's growing zone.

Hydroponic Garden Grow Kit

Seed Starting Trays

Metal Seed Storage Box

Small Greenhouse Kit

Raised Garden Bed Kit
Trees for 91103
Fruits for 91103
Flowers for 91103
Vegetables for 91103


Planting Advice for 91103
Have questions about planting in 91103's climate? Check out our FAQ below for answers to common questions about growing plants in the area.
Zip code 91103 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 Pasadena
Check the growing calendar for Pasadena at the Old Farmer's Almanac to see the best planting times for the region.

Rustic Iron Garden Trellis

Large Greenhouse Kit

Brass Decorative Faucet Handle

Deluxe Plastic Watering Can

Small Greenhouse 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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