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 Superior you can figure out when to plant eggplants by using the USDA zone info.

Planting Calendar for Eggplants

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

Eggplants require warm weather which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant eggplants in Superior is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant eggplants and expect a good harvest is probably August. You probably don't want to wait any later than that or else your eggplants may not have a chance to fully mature. If you are starting your eggplants indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Superior. It might get as low as -25°F during the coldest months of winter.

Remember that USDA zone info for Superior is an average and the actual date of last frost changes from year to year. Half of the time in Superior you get a frost after May 15 so make sure that you are ready to protect your eggplants if you have a surprise late frost.

USDA Zone Info for Superior

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Superior

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