The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to determine when it's a good idea to plant eggplants by referring to the USDA zone info for Vallejo.

Planting Calendar for Eggplants

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

Since eggplants do not do well in cold weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant eggplants in Vallejo 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. You probably don't want to wait any later than that or else your eggplants may not have a chance to fully mature. Starting your eggplants indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Vallejo 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 Vallejo may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Vallejo there is a last frost after February 15 be ready to cover your eggplants if you have a late frost.

USDA Zone Info for Vallejo

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 Vallejo

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