When to Plant Poppies in Carol Stream, IL

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Carol Stream you can determine when it's a good idea to plant poppies by reviewing the USDA zone info.


Planting Calendar for Poppies

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

You can plant poppies a little earlier in the year because they are moderately cold tolerant.

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

The earliest that you can plant poppies in Carol Stream 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 poppies and expect a good harvest is probably September. Any later than that and your poppies may not have a chance to grow to maturity. You can get started a little bit earlier by starting your poppies indoors.

Last Frost Date

The average date of last frost is April 15 in Carol Stream. You should expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Carol Stream may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Carol Stream last frost occurs after April 15 be ready to cover your poppies in the event of a surprise late frost.

USDA Zone Info for Carol Stream

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 Carol Stream

You may be interested in your other planting guides for Carol Stream.