The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Marshall it's possible to estimate when it's a good idea to plant snow peas.

Planting Calendar for Snow peas

Frost tolerance for snow peas:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Snow peas do well in cold which tells us that you can start planting them much earlier than other plants that might not handle the cold.

The earliest that you can plant snow peas in Marshall is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant snow peas and expect a good harvest is probably August. You probably don't want to wait any later than that or else your snow peas may not have a chance to really do well. You can get started a little bit earlier by starting your snow peas indoors.

Last Frost Date

The average date of last frost is May 15 in Marshall. In the coldest months of winter you should expect an average low temperature of -25°F.

It's important to remember that USDA zone info for Marshall is an average and the actual date of last frost will vary from year to year. Half of the time in Marshall there is a last frost after May 15 so be sure to be ready to cover your snow peas if you have a surprise late frost.

USDA Zone Info for Marshall

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Marshall

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