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

One way of making a decision about when it's a good idea to plant basil is to look at the USDA zone info for Healdsburg.

Planting Calendar for Basil

Frost tolerance for basil:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant basil until after the last frost because they do not do well in cold weather.

The earliest that you can plant basil 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 basil and expect a good harvest is probably September. Any later than that and your basil may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your basil indoors.

Last Frost Date

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

Remember that USDA zone info for Healdsburg may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Healdsburg you get a frost after February 15 so always be ready to protect your basil if you have a late frost.

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.