One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. 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 Atascadero should be looked at to figure out when 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.

Since tarragon are barely cold tolerant you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant tarragon in Atascadero 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. If you are starting your tarragon indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Atascadero the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 20°F.

Always keep in mind that USDA zone info for Atascadero is an average and the actual date of last frost is different every year. Half of the time in Atascadero it frosts late in the year after February 15 so make sure that you are ready to protect your tarragon if you have one of those late frosts.

USDA Zone Info for Atascadero

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 Atascadero

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