One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant dill in Rio Grande City can be estimated by referring to the USDA zone info.

Planting Calendar for Dill

Frost tolerance for dill:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Dill can survive in very little cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant dill in Rio Grande City 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 dill and expect a good harvest is probably September. You probably don't want to wait any later than that or else your dill may not have a chance to fully mature. If you are starting your dill indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Rio Grande City is an average and the actual date of last frost will vary from year to year. Half of the time in Rio Grande City you get a frost after February 15 so make sure that you are ready to cover your dill if you have 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.