When to Plant Field Peas in Knoxville, IA

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.

You will be able to estimate when it's possible to plant field peas by using the USDA zone info for Knoxville.


Planting Calendar for Field Peas

Frost tolerance for field peas: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Field Peas do well in some cold which tells us that you can plant them a little earlier in the year than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant field peas
Possibly ok, but a risky time to plant field peas
Probably not a good time to plant field peas

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

The last month that you can plant field peas and expect a good harvest is probably September. You probably don't want to wait any later than that or else your field peas may not have a chance to fully mature. If you are starting your field peas indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Knoxville the average date of last frost happens on April 15. You should expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Knoxville and it can change quite a bit from year to year. Since half of the time in Knoxville last frost occurs after April 15 be ready to protect your field peas if you have one of those late frosts.

USDA Zone Info for Knoxville

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Knoxville

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