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

It's possible to determine when it's a good idea to plant eggplants by looking at the USDA zone info for Upland.

Planting Calendar for Eggplants

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

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

The earliest that you can plant eggplants in Upland 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 eggplants and expect a good harvest is probably September. Any later than that and 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 little bit earlier.

Last Frost Date

On average the last frost has passed is on January 31 in Upland. You can expect an average low temperature of 30°F in the coldest months of winter.

Remember that USDA zone info for Upland may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Upland there is a last frost after January 31 be ready to protect your eggplants in the event of a late frost.

USDA Zone Info for Upland

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Upland

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