When to Plant Tarragon in Watertown, WI

One of the first steps you take when you are making a decision about 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 Watertown should be reffered to in order to figure out when it's possible to plant tarragon.

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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 are one of those plants that can tolerate a tiny bit of cold weather.

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 Watertown 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. 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 couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Watertown. You can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Watertown is not always accurate the actual date of last frost changes from year to year. Half of the time in Watertown last frost occurs after April 15 so make sure that you are prepared to protect your tarragon if you have one of those late frosts.

USDA Zone Info for Watertown

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°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 -15°F.

Plants to Grow in Watertown

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