Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant trachelium in Louisville can be estimated by using the USDA zone info.

Planting Calendar for Trachelium

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

Since trachelium require warm weather you have to wait until after the last frost before you can plant them.

The earliest that you can plant trachelium in Louisville 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 trachelium and expect a good harvest is probably August. If you wait any later than that and your trachelium may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your trachelium indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Louisville. In the coldest months of winter you should expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Louisville is just an average and the actual date of last frost will vary from year to year. Half of the time in Louisville you get surprised by a frost after April 15 so be sure to be ready to protect your trachelium in the event of a surprise late frost.

USDA Zone Info for Louisville

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 Louisville

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