The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Pasadena can be reviewed to figure out when it's a good idea to plant squash.

Planting Calendar for Squash

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

Squash require warm weather which tells us that you must wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant squash in 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 squash and expect a good harvest is probably September. You probably don't want to wait any later than that or else your squash may not have a chance to grow to maturity. 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

On average all chance of frost has passed is on January 31 in Pasadena. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Pasadena is just an average the actual date of last frost will vary from year to year. Half of the time in Pasadena last frost occurs after January 31 so always be ready to cover your squash in the event of one of those late frosts.

USDA Zone Info for 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 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 Pasadena

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