When to Plant Tarragon in Rochester, NH

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Rochester you can figure out when it's a good idea to plant tarragon 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 just a tiny bit earlier in the year because they do ok in moderate cold.

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 Rochester 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 fully mature. You can get started a few weeks earlier by starting your tarragon indoors.

Last Frost Date

The average date of last frost is April 15 in Rochester. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Rochester is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Rochester you get a frost after April 15 so make sure that you are ready to cover your tarragon in the event of one of those late frosts.

USDA Zone Info for Rochester

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Rochester

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