When to Plant Lisianthus in Sunbury, PA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. 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 Sunbury should be read to determine when it's a good idea to plant lisianthus.


Planting Calendar for Lisianthus

Frost tolerance for lisianthus: Not tolerant of frost.
When to plant: After the last frost.

Lisianthus do not do well in cold weather which means that you have to wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant lisianthus in Sunbury 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 lisianthus and expect a good harvest is probably August. Any later than that and your lisianthus may not have a chance to really do well. If you are starting your lisianthus indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Sunbury. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Sunbury is not always accurate the actual date of last frost is different every year. Since half of the time in Sunbury it frosts late in the year after April 15 be ready to cover your lisianthus in the event of a surprise late frost.

USDA Zone Info for Sunbury

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 Sunbury

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