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

In South San Francisco you can estimate when to plant creeping phlox by reviewing the USDA zone info.

Planting Calendar for Creeping Phlox

Frost tolerance for creeping phlox:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Creeping Phlox do well in cold weather which means that you can plant them earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant creeping phlox 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 creeping phlox and expect a good harvest is probably October. Any later than that and your creeping phlox may not have a chance to really do well. If you are starting your creeping phlox indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In South San Francisco the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for South San Francisco is not always accurate the actual date of last frost changes from year to year. Half of the time in South San Francisco you get a frost after January 31 so make sure that you are ready to cover your creeping phlox 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.