The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant stevia in Del Rio should be figured out by looking at the USDA zone info.

Planting Calendar for Stevia

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

It's probably not a good idea to plant stevia until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant stevia in Del Rio 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 stevia and expect a good harvest is probably September. If you wait any later than that and your stevia may not have a chance to fully mature. Starting your stevia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Del Rio. You can expect an average low temperature of 20°F in the coldest months of winter.

Always keep in mind that USDA zone info for Del Rio is just an average and the actual date of last frost changes from year to year. Half of the time in Del Rio you get surprised by a frost after February 15 so always be ready to protect your stevia in the event of a late frost.

USDA Zone Info for Del Rio

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Del Rio

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