When to Plant Tomatos in South Pasadena, CA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for South Pasadena you should be able to estimate when to plant tomatos.


Planting Calendar for Tomatos

Frost tolerance for tomatos: Not tolerant of frost.
When to plant: After the last frost has passed.

You should not plant tomatos until after the last frost because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant tomatos
Possibly ok, but a risky time to plant tomatos
Probably not a good time to plant tomatos

The earliest that you can plant tomatos in South Pasadena is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant tomatos and expect a good harvest is probably September. You probably don't want to wait any later than that or else your tomatos may not have a chance to really do well. You can get started a few weeks earlier by starting your tomatos indoors.

Last Frost Date

The average date of last frost is January 31 in South Pasadena. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for South Pasadena is an average the actual date of last frost will vary from year to year. Half of the time in South Pasadena last frost occurs after January 31 so just be sure to be ready to cover your tomatos if you have a late frost.

USDA Zone Info for South Pasadena

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low30°F
Highest Expected Low35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in South Pasadena

You may be interested in your other planting guides for South Pasadena.