When to Plant Schizanthus in Wilmington, DE

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's possible to plant schizanthus in Wilmington by reviewing the USDA zone info.


Planting Calendar for Schizanthus

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

Schizanthus do not do well in cold weather which tells us that you need to wait until it warms up after the last frost has passed before you can plant them.

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 Wilmington 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. If you wait any later than that and your schizanthus may not have a chance to really do well. Starting your schizanthus indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Wilmington. In the coldest months of winter you can expect an average low temperature of 0°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Wilmington and it changes from year to year. Half of the time in Wilmington you get a frost after April 15 so just be sure to be ready to cover your schizanthus if you have one of those late frosts.

USDA Zone Info for Wilmington

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

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

Plants to Grow in Wilmington

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