The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Rio Grande City you can determine when to plant carrots by referring to the USDA zone info.

Planting Calendar for Carrots

Frost tolerance for carrots:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Carrots do well in a little bit of cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant carrots in Rio Grande City 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 carrots and expect a good harvest is probably October. Any later than that and your carrots may not have a chance to fully mature. Starting your carrots indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Rio Grande City. In the coldest months of winter you should expect an average low temperature of 25°F.

It's important to remember that USDA zone info for Rio Grande City is just an average and the actual date of last frost is different every year. Since half of the time in Rio Grande City last frost occurs after February 15 be ready to protect your carrots in the event of a surprise 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.