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.

In South San Francisco you can estimate when it's a good idea to plant garden orache by checking out the USDA zone info.

Planting Calendar for Garden Orache

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

Garden Orache do well in moderate cold which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant garden orache 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 garden orache and expect a good harvest is probably October. You probably don't want to wait any later than that or else your garden orache may not have a chance to grow to maturity. If you are starting your garden orache indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in South San Francisco. It might get as low as 30°F during the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for South San Francisco and it can change quite a bit from year to year. Half of the time in South San Francisco last frost occurs after January 31 so always be ready to protect your garden orache 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.