One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Harrington Park you can estimate when it's possible to plant indian cress by referring to the USDA zone info.

Planting Calendar for Indian cress

Frost tolerance for indian cress:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since indian cress do not do well in cold weather you need to wait until after the last frost before you can plant them.

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

Last Frost Date

On average the last frost is on April 15 in Harrington Park. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Harrington Park is just an average the actual date of last frost is different every year. Since half of the time in Harrington Park there is a last frost after April 15 be ready to cover your indian cress in the event of a surprise late frost.

USDA Zone Info for Harrington Park

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 Harrington Park

You may be interested in your other planting guides for Harrington Park.