One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when to plant snow-in summer is to consult the USDA zone info for Zone 10b.

Planting Calendar for Snow-in Summer

Frost tolerance for snow-in summer:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Snow-in Summer do well in moderate cold which means that you can get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant snow-in summer in Zone 10b 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 snow-in summer and expect a good harvest is probably October. Any later than that and your snow-in summer may not have a chance to grow to maturity. You can get started a little bit earlier by starting your snow-in summer indoors.

Last Frost Date

The average date of last frost is January 31 in Zone 10b. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Zone 10b is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 10b you get a frost after January 31 be ready to cover your snow-in summer if you have a late frost.

USDA Zone Info for Zone 10b

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 Zone 10b

You may be interested in your other planting guides for Zone 10b.