One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when it's possible to plant pumpkins is to check out the USDA zone info for San Bruno.

Planting Calendar for Pumpkins

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

Since pumpkins are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant pumpkins in San Bruno 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 pumpkins and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pumpkins may not have a chance to really do well. You can get started a couple of weeks earlier by starting your pumpkins indoors.

Last Frost Date

On average the last frost has passed is on January 31 in San Bruno. You can expect an average low temperature of 30°F in the coldest months of winter.

Just be sure to remember that USDA zone info for San Bruno may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in San Bruno you get a frost after January 31 be ready to protect your pumpkins if you have one of those late frosts.

USDA Zone Info for San Bruno

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 Bruno

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