When to Plant Tarragon in Belleville, IL

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant tarragon in Belleville can be determined by checking out 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.

You can plant tarragon a bit earlier in the year because they are barely cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant tarragon
Possibly ok, but a risky time to plant tarragon
Probably not a good time to plant tarragon

The earliest that you can plant tarragon in Belleville 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. You probably don't want to wait any later than that or else your tarragon may not have a chance to grow to maturity. 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 April 15 in Belleville. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Belleville is not always accurate the actual date of last frost changes from year to year. Half of the time in Belleville you get a frost after April 15 so always be ready to cover your tarragon if you have a late frost.

USDA Zone Info for Belleville

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Belleville

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