When to Plant Snow peas in Decatur, IL

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's a good idea to plant snow peas in Decatur by looking at the USDA zone info.


Planting Calendar for Snow peas

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

You can plant snow peas much earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

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

The earliest that you can plant snow peas in Decatur 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 snow peas and expect a good harvest is probably September. Any later than that and your snow peas may not have a chance to really do well. Starting your snow peas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Decatur the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Decatur is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Decatur you get a frost after April 15 be ready to cover your snow peas in the event of one of those late frosts.

USDA Zone Info for Decatur

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 Decatur

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