One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when it's possible to plant tarragon is to look at the USDA zone info for Palmetto.

Planting Calendar for Tarragon

Frost tolerance for tarragon:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Tarragon are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can plant them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant tarragon in Palmetto 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 tarragon and expect a good harvest is probably September. If you wait any later than that and your tarragon may not have a chance to grow to maturity. Starting your tarragon indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Palmetto the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Palmetto is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Palmetto it frosts late in the year after February 15 be ready to protect your tarragon if you have a late frost.

USDA Zone Info for Palmetto

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 Palmetto

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