When to Plant Monarda in Somersworth, NH

One of the first steps you take when you are estimating 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.

By referring to the USDA zone info for Somersworth you will be able to estimate when it's a good idea to plant monarda.


Planting Calendar for Monarda

Frost tolerance for monarda: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Since monarda do ok in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant monarda in Somersworth 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 monarda and expect a good harvest is probably August. Any later than that and your monarda may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your monarda indoors.

Last Frost Date

The average date of last frost is April 15 in Somersworth. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Somersworth may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Somersworth it frosts late in the year after April 15 so be sure to be ready to cover your monarda if you have a surprise late frost.

USDA Zone Info for Somersworth

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 Somersworth

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