When to Plant Pansies in Wheaton, IL

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when you can plant pansies is to use the USDA zone info for Wheaton.

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Planting Calendar for Pansies

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

Pansies are very cold tolerant which tells us that you can plant them much earlier than more sensitive plants.

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

The earliest that you can plant pansies in Wheaton 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 pansies and expect a good harvest is probably September. Any later than that and your pansies may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your pansies indoors.

Last Frost Date

On average the last frost is on April 15 in Wheaton. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Wheaton is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Wheaton you get a frost after April 15 be ready to cover your pansies if you have a late frost.

USDA Zone Info for Wheaton

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 Wheaton

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