When can I plant Foxglove in Naperville, IL

One of the first steps we take when we are making a decision about our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

It's a good idea to figure out when it's the best time to plant foxglove by using the USDA zone info for Naperville.


Planting Calendar for Foxglove

Frost tolerance for foxglove: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

You can plant foxglove a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

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

The earliest that you can plant foxglove in Naperville 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 foxglove and expect a good harvest is probably September. Any later than that and your foxglove may not have a chance to really do well. You can get started a few weeks earlier by starting your foxglove indoors.

Last Frost Date

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

Since the USDA zone info for Naperville is just an average our actual date of last frost can change quite a bit from year to year. Half of the time in Naperville we get a frost after April 15 so make sure that you are prepared to cover your foxglove in the event of a late frost.

USDA Zone Info for Naperville

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 Naperville

You may be interested in our other planting guides for Naperville.