Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to determine when you can plant trachelium by checking out the USDA zone info for Gretna.

Planting Calendar for Trachelium

Frost tolerance for trachelium:	Not tolerant of frost.
When to plant:	After the last frost.

You really shouldn't plant trachelium until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant trachelium in Gretna is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant trachelium and expect a good harvest is probably September. Any later than that and your trachelium may not have a chance to fully mature. You can get started a little bit earlier by starting your trachelium indoors.

Last Frost Date

The average date of last frost is February 15 in Gretna. In the coldest months of winter you can expect an average low temperature of 25°F.

It's important to remember that USDA zone info for Gretna is just an average and the actual date of last frost is different every year. Since half of the time in Gretna you get surprised by a frost after February 15 be ready to cover your trachelium in the event of one of those late frosts.

USDA Zone Info for Gretna

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Gretna

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