Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when it's the best time to plant tarragon is to examine the USDA zone info for Crystal City.

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 means that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant tarragon in Crystal City 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. You probably don't want to wait any later than that or else your tarragon may not have a chance to really do well. Starting your tarragon indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Crystal City. In the coldest months of winter you can expect an average low temperature of 20°F.

It's important to remember that USDA zone info for Crystal City is an average and the actual date of last frost is different every year. Half of the time in Crystal City there is a last frost after February 15 so always be ready to cover your tarragon in the event of one of those late frosts.

USDA Zone Info for Crystal City

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Crystal City

You may be interested in your other planting guides for Crystal City.