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.

You should be able to determine when to plant garden cress by looking at the USDA zone info for Marlborough.

Planting Calendar for Garden cress

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

It's probably a bad idea to plant garden cress until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant garden cress in Marlborough 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 garden cress and expect a good harvest is probably August. You probably don't want to wait any later than that or else your garden cress may not have a chance to grow to maturity. Starting your garden cress indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Marlborough. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Marlborough is an average the actual date of last frost will vary from year to year. Half of the time in Marlborough there is a last frost after April 15 so make sure that you are ready to cover your garden cress in the event of a surprise late frost.

USDA Zone Info for Marlborough

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 Marlborough

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