Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Donna should be reviewed to figure out when to plant eggplants.

Planting Calendar for Eggplants

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

Since eggplants require warm weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant eggplants in Donna 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 eggplants and expect a good harvest is probably September. If you wait any later than that and your eggplants may not have a chance to grow to maturity. If you are starting your eggplants indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Donna is just an average the actual date of last frost will vary from year to year. Since half of the time in Donna it frosts late in the year after February 15 be ready to cover your eggplants if you have a surprise late frost.

USDA Zone Info for Donna

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 Donna

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