One of the best tools that you have as gardeners to help us estimate 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.

You can estimate when it's a good idea to plant tarragon in Crestline by using the USDA zone info.

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 barely cold tolerant which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant tarragon in Crestline 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 tarragon and expect a good harvest is probably August. If you wait any later than that and your tarragon may not have a chance to really do well. You can get started a few weeks earlier by starting your tarragon indoors.

Last Frost Date

In Crestline the average date of last frost happens on April 15. You should expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Crestline is just an average and the actual date of last frost will vary from year to year. Half of the time in Crestline last frost occurs after April 15 so just be sure to be ready to cover your tarragon if you have a surprise late frost.

USDA Zone Info for Crestline

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Crestline

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