One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

In South San Francisco you can estimate when you can plant snapdragons by looking at the USDA zone info.

Planting Calendar for Snapdragons

Frost tolerance for snapdragons:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant snapdragons a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant snapdragons in South San Francisco is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant snapdragons and expect a good harvest is probably October. Any later than that and your snapdragons may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your snapdragons indoors.

Last Frost Date

The average date of last frost is January 31 in South San Francisco. 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 South San Francisco is an average and the actual date of last frost is different every year. Since half of the time in South San Francisco you get surprised by a frost after January 31 be ready to cover your snapdragons in the event of a surprise late frost.

USDA Zone Info for South San Francisco

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 South San Francisco

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