One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

A way of figuring out when you can plant lisianthus is to use the USDA zone info for Norfolk.

Planting Calendar for Lisianthus

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

It's not a good idea to plant lisianthus until after all chance of frost has passed because they require warm weather.

The earliest that you can plant lisianthus in Norfolk 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. You can get started a couple of weeks earlier by starting your lisianthus indoors.

Last Frost Date

The average date of last frost is March 15 in Norfolk. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Norfolk may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Norfolk last frost occurs after March 15 be ready to cover your lisianthus in the event of a surprise late frost.

USDA Zone Info for Norfolk

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Norfolk

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