One of the first steps you take when you are making a decision about 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.

You should be able to determine when it's a good idea to plant peanut by looking at the USDA zone info for Rialto.

Planting Calendar for Peanut

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

It's a bad idea to plant peanut until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant peanut in Rialto 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 peanut and expect a good harvest is probably September. Any later than that and your peanut may not have a chance to really do well. If you are starting your peanut 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 Rialto. You can expect an average low temperature of 30°F in the coldest months of winter.

It's important to remember that USDA zone info for Rialto is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Rialto last frost occurs after January 31 be ready to protect your peanut if you have a late frost.

USDA Zone Info for Rialto

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 Rialto

You may be interested in your other planting guides for Rialto.