When to Plant Stoneseed in Downers Grove, IL

One of the best tools that you have as gardeners to help us figure out 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.

You can estimate when it's a good idea to plant stoneseed in Downers Grove by using the USDA zone info.


Planting Calendar for Stoneseed

Frost tolerance for stoneseed: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Stoneseed require warm weather which tells us that it's necessary to wait until it warms up after the last frost before you can plant them.

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

The earliest that you can plant stoneseed in Downers Grove 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 stoneseed and expect a good harvest is probably August. If you wait any later than that and your stoneseed may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your stoneseed indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Downers Grove. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Downers Grove may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Downers Grove there is a last frost after April 15 so just be sure to be ready to protect your stoneseed if you have one of those late frosts.

USDA Zone Info for Downers Grove

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 Downers Grove

You may be interested in your other planting guides for Downers Grove.