Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's a good idea to plant bell peppers by checking out the USDA zone info for San Ramon.

Planting Calendar for Bell Peppers

Frost tolerance for bell peppers:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant bell peppers until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant bell peppers in San Ramon is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bell peppers and expect a good harvest is probably September. Any later than that and your bell peppers may not have a chance to really do well. If you are starting your bell peppers indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in San Ramon. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for San Ramon is an average and the actual date of last frost changes from year to year. Half of the time in San Ramon last frost occurs after February 15 so make sure that you are ready to cover your bell peppers in the event of a surprise late frost.

USDA Zone Info for San Ramon

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in San Ramon

You may be interested in your other planting guides for San Ramon.