The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when to plant galium in San Francisco by reviewing the USDA zone info.

Planting Calendar for Galium

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

Since galium are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant galium in 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 galium and expect a good harvest is probably October. If you wait any later than that and your galium may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your galium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in San Francisco. In the coldest months of winter you should expect an average low temperature of 35°F.

Just be sure to remember that USDA zone info for San Francisco is not always accurate and the actual date of last frost changes from year to year. Half of the time in San Francisco you get surprised by a frost after January 31 so make sure that you are ready to cover your galium in the event of a surprise late frost.

USDA Zone Info for San Francisco

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in San Francisco

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