Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for San Gabriel you should be able to determine when to plant squash.

Planting Calendar for Squash

Frost tolerance for squash:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant squash until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant squash in San Gabriel 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 squash and expect a good harvest is probably September. Any later than that and your squash may not have a chance to fully mature. If you are starting your squash indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in San Gabriel. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for San Gabriel is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in San Gabriel last frost occurs after January 31 so be sure to be ready to cover your squash if you have a surprise late frost.

USDA Zone Info for San Gabriel

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 Low	30°F
Highest Expected Low	35°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 San Gabriel

You may be interested in your other planting guides for San Gabriel.