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

It's a good idea to determine when it's a good idea to plant peas by checking out the USDA zone info for Decorah.

Planting Calendar for Peas

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

Peas do ok in cold weather which tells us that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant peas in Decorah 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 peas and expect a good harvest is probably August. If you wait any later than that and your peas may not have a chance to really do well. Starting your peas indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Decorah. In the coldest months of winter you should expect an average low temperature of -25°F.

Always keep in mind that USDA zone info for Decorah is just an average and the actual date of last frost will vary from year to year. Half of the time in Decorah you get surprised by a frost after May 15 so just be sure to be ready to cover your peas if you have a late frost.

USDA Zone Info for Decorah

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 Decorah

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