One of the best tools that you have as gardeners to help us estimate 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 will be able to estimate when it's a good idea to plant peanut by referring to the USDA zone info for San Bernardino.

Planting Calendar for Peanut

Frost tolerance for peanut:	Not tolerant of frost.
When to plant:	After the last frost.

Peanut are not cold tolerant which tells us that it is important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant peanut in San Bernardino 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 peanut and expect a good harvest is probably September. You probably don't want to wait any later than that or else your peanut may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your peanut indoors.

Last Frost Date

The average date of last frost is February 15 in San Bernardino. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for San Bernardino is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in San Bernardino it frosts late in the year after February 15 be ready to cover your peanut in the event of a late frost.

USDA Zone Info for San Bernardino

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 Bernardino

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