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

The earliest that you can plant squash in Poway should be figured out by using the USDA zone info.

Planting Calendar for Squash

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

Since squash are not cold tolerant it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant squash in Poway is March. However, you really should wait until April 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. You can get started a little bit earlier by starting your squash indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Poway. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Poway is just an average the actual date of last frost will vary from year to year. Half of the time in Poway last frost occurs after February 15 so make sure that you are ready to cover your squash in the event of a surprise late frost.

USDA Zone Info for Poway

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Poway

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