One of the first steps you take when you are getting a good idea 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.

By checking out the USDA zone info for Santa Monica it's a good idea to figure out when you can plant bittercress.

Planting Calendar for Bittercress

Frost tolerance for bittercress:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since bittercress are barely cold tolerant you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant bittercress in Santa Monica 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 bittercress and expect a good harvest is probably September. Any later than that and your bittercress may not have a chance to really do well. You can get started a little bit earlier by starting your bittercress indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Santa Monica. It might get as low as 35°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Santa Monica and it will vary from year to year. Half of the time in Santa Monica it frosts late in the year after January 31 so make sure that you are prepared to protect your bittercress in the event of a late frost.

USDA Zone Info for Santa Monica

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 Santa Monica

You may be interested in your other planting guides for Santa Monica.