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 USDA zone info for Salem can be reviewed to figure out when it's possible to plant trachelium.

Planting Calendar for Trachelium

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

It's probably not a good idea to plant trachelium until after the last frost because they are not cold tolerant.

The earliest that you can plant trachelium in Salem 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 little bit earlier by starting your trachelium indoors.

Last Frost Date

On average the last frost is on April 15 in Salem. In the coldest months of winter you can expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Salem may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Salem there is a last frost after April 15 so always be ready to protect your trachelium in the event of a surprise late frost.

USDA Zone Info for Salem

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Salem

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