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.

It's possible to estimate when you can plant lisianthus by referring to the USDA zone info for Keyser.

Planting Calendar for Lisianthus

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

You really shouldn't plant lisianthus until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant lisianthus in Keyser 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 fully mature. You can get started a few weeks earlier by starting your lisianthus indoors.

Last Frost Date

On average the last frost is on April 15 in Keyser. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Keyser is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Keyser you get surprised by a frost after April 15 so be sure to be ready to cover your lisianthus if you have a late frost.

USDA Zone Info for Keyser

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 Low	0°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 Keyser

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