When to Plant Stoneseed in Concord, NH

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's possible to plant stoneseed in Concord by referring to the USDA zone info.


Planting Calendar for Stoneseed

Frost tolerance for stoneseed: Not tolerant of frost.
When to plant: After the last frost has passed.

It's a bad idea to plant stoneseed until after the last frost has passed because they are not cold tolerant.

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

The earliest that you can plant stoneseed in Concord is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant stoneseed and expect a good harvest is probably August. Any later than that and your stoneseed may not have a chance to fully mature. You can get started a few weeks earlier by starting your stoneseed indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Concord. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Concord may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Concord last frost occurs after April 15 so be sure to be ready to cover your stoneseed if you have a surprise late frost.

USDA Zone Info for Concord

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 Concord

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