When to Plant Schizanthus in Groton, CT

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.

It's possible to figure out when to plant schizanthus by using the USDA zone info for Groton.


Planting Calendar for Schizanthus

Frost tolerance for schizanthus: Not tolerant of frost.
When to plant: After all chance of frost has passed.

It's probably a bad idea to plant schizanthus until after all chance of frost has passed because they require warm weather.

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

The earliest that you can plant schizanthus in Groton 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 schizanthus and expect a good harvest is probably August. Any later than that and your schizanthus may not have a chance to grow to maturity. You can get started a little bit earlier by starting your schizanthus indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Groton. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Groton is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Groton there is a last frost after April 15 be ready to protect your schizanthus in the event of a surprise late frost.

USDA Zone Info for Groton

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Groton

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