One of the first steps you take when you are making a decision about 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 common way of making a decision about when it's a good idea to plant axilflower is to look at the USDA zone info for San Francisco.

Planting Calendar for Axilflower

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

Axilflower are not cold tolerant which tells us that it's important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant axilflower in San Francisco 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 axilflower and expect a good harvest is probably September. If you wait any later than that and your axilflower may not have a chance to really do well. You can get started a few weeks earlier by starting your axilflower indoors.

Last Frost Date

The average date of last frost is January 31 in San Francisco. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for San Francisco is not always accurate the actual date of last frost changes from year to year. Half of the time in San Francisco it frosts late in the year after January 31 so make sure that you are ready to cover your axilflower if you have one of those late frosts.

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.