One of the first steps you take when you are estimating 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.

In Rio Grande City you can estimate when it's a good idea to plant peanut by checking out the USDA zone info.

Planting Calendar for Peanut

Frost tolerance for peanut:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since peanut are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant peanut in Rio Grande City 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. If you wait any later than that and your peanut may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your peanut indoors.

Last Frost Date

In Rio Grande City the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Rio Grande City and it can change quite a bit from year to year. Half of the time in Rio Grande City you get surprised by a frost after February 15 so make sure that you are prepared to cover your peanut if you have a late frost.

USDA Zone Info for Rio Grande City

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 Rio Grande City

You may be interested in your other planting guides for Rio Grande City.