When to Plant Scarlet Pimpernels in Geneseo, IL

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when it's a good idea to plant scarlet pimpernels is to refer to the USDA zone info for Geneseo.


Planting Calendar for Scarlet Pimpernels

Frost tolerance for scarlet pimpernels: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

You can plant scarlet pimpernels just a tiny bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

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

The earliest that you can plant scarlet pimpernels in Geneseo is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant scarlet pimpernels and expect a good harvest is probably August. Any later than that and your scarlet pimpernels may not have a chance to fully mature. You can get started a few weeks earlier by starting your scarlet pimpernels indoors.

Last Frost Date

On average the last frost is on April 15 in Geneseo. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Geneseo is an average the actual date of last frost will vary from year to year. Since half of the time in Geneseo you get a frost after April 15 be ready to cover your scarlet pimpernels if you have a late frost.

USDA Zone Info for Geneseo

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 Geneseo

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