One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when it's possible to plant lisianthus is to refer to the USDA zone info for River Edge.

Planting Calendar for Lisianthus

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

You can not plant lisianthus until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant lisianthus in River Edge 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. You probably don't want to wait any later than that or else 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 River Edge. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for River Edge may not be accurate from year to year the actual date of last frost is different every year. Half of the time in River Edge it frosts late in the year after April 15 so be sure to be ready to protect your lisianthus in the event of a surprise late frost.

USDA Zone Info for River Edge

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 Low	0°F
Highest Expected Low	5°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 River Edge

You may be interested in your other planting guides for River Edge.