One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when you can plant lenten rose in San Francisco by checking out the USDA zone info.

Planting Calendar for Lenten Rose

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

You can plant lenten rose a little 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 lenten rose 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 lenten rose and expect a good harvest is probably October. Any later than that and your lenten rose may not have a chance to really do well. You can get started a little bit earlier by starting your lenten rose indoors.

Last Frost Date

In San Francisco the average date of last frost happens on January 31. You can expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for San Francisco is an average the actual date of last frost can change quite a bit from year to year. Half of the time in San Francisco there is a last frost after January 31 so be sure to be ready to cover your lenten rose 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.