When to Plant Scabiosa in Lisle, IL

One of the first steps you take when you are getting a good idea 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.

The first opportunity to plant scabiosa in Lisle can be figured out by looking at the USDA zone info.


Planting Calendar for Scabiosa

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

Scabiosa are moderately cold tolerant which tells us that you can start planting them earlier than other frost tender plants.

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

The earliest that you can plant scabiosa in Lisle 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 scabiosa and expect a good harvest is probably September. You probably don't want to wait any later than that or else your scabiosa may not have a chance to fully mature. If you are starting your scabiosa indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Lisle the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Lisle is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Lisle it frosts late in the year after April 15 so make sure that you are ready to cover your scabiosa in the event of a surprise late frost.

USDA Zone Info for Lisle

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 Lisle

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