The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Lewistown you can figure out when it's possible to plant garden cress by referring to the USDA zone info.

Planting Calendar for Garden cress

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

Since garden cress are not cold tolerant it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant garden cress in Lewistown is May. However, you really should wait until June 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. If you wait any later than that and 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 little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Lewistown. You can expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Lewistown and it can change quite a bit from year to year. Since half of the time in Lewistown last frost occurs after May 15 be ready to protect your garden cress in the event of a late frost.

USDA Zone Info for Lewistown

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

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

Plants to Grow in Lewistown

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