The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Tucson should be used to estimate when it's the best time to plant tarragon.

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 do ok in very little cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant tarragon in Tucson 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. Any later than that and your tarragon may not have a chance to fully mature. Starting your tarragon indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Tucson. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Tucson is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Tucson you get surprised by a frost after February 15 so just be sure to be ready to cover your tarragon if you have a surprise late frost.

USDA Zone Info for Tucson

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 Tucson

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