When to Plant Flowering Tobacco in Portsmouth, NH

One of the first steps you take when you are figuring out your gardening schedule is find your 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 best time to plant flowering tobacco in Portsmouth can be estimated by referring to the USDA zone info.


Planting Calendar for Flowering Tobacco

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

Flowering Tobacco require warm weather which means that you really should wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant flowering tobacco in Portsmouth 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 flowering tobacco and expect a good harvest is probably August. You probably don't want to wait any later than that or else your flowering tobacco may not have a chance to really do well. You can get started a little bit earlier by starting your flowering tobacco indoors.

Last Frost Date

On average the last frost is on April 15 in Portsmouth. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Portsmouth may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Portsmouth it frosts late in the year after April 15 be ready to cover your flowering tobacco if you have a surprise late frost.

USDA Zone Info for Portsmouth

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Portsmouth

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