Before planting it is a good idea to find your USDA Zone info to figure out 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 Sandwich can be looked at to determine when it's the best time to plant trachelium.

Planting Calendar for Trachelium

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

It's a bad idea to plant trachelium until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant trachelium in Sandwich 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. Any later than that and your trachelium may not have a chance to really do well. You can get started a couple of weeks earlier by starting your trachelium indoors.

Last Frost Date

The average date of last frost is April 15 in Sandwich. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Sandwich is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Sandwich last frost occurs after April 15 be ready to cover your trachelium in the event of one of those late frosts.

USDA Zone Info for Sandwich

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Sandwich

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