One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. 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 estimate when it's a good idea to plant peanut by using the USDA zone info for Waterloo.

Planting Calendar for Peanut

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

Peanut do not do well in cold weather which tells us that you need to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant peanut in Waterloo 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 peanut and expect a good harvest is probably August. Any later than that and your peanut may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your peanut indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Waterloo. You should expect an average low temperature of -20°F in the coldest months of winter.

Remember that USDA zone info for Waterloo is an average and the actual date of last frost will vary from year to year. Half of the time in Waterloo you get surprised by a frost after April 15 so always be ready to protect your peanut if you have a surprise late frost.

USDA Zone Info for Waterloo

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Waterloo

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