The USDA Zone info is a great tool for gardeners to help us estimate 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.

The USDA zone info for Healdsburg should be reviewed to figure out when it's a good idea to plant eggplants.

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 it's necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant eggplants in Healdsburg 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. Any later than that and your eggplants may not have a chance to really do well. You can get started a couple of weeks earlier by starting your eggplants indoors.

Last Frost Date

On average the last frost is on February 15 in Healdsburg. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Healdsburg is an average the actual date of last frost is different every year. Half of the time in Healdsburg you get surprised by a frost after February 15 so make sure that you are prepared to protect your eggplants if you have one of those late frosts.

USDA Zone Info for Healdsburg

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 Healdsburg

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