When can I plant Foxglove in Zone 1b

The USDA Zone info is a great tool for gardeners to help us figure out our gardening schedule. 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 estimate when it's possible to plant foxglove by referring to the USDA zone info for Zone 1b.


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 just a bit earlier in the year because they are moderately cold tolerant.

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 Zone 1b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant foxglove and expect a good harvest is probably July. If you wait any later than that and your foxglove may not have a chance to really do well. You can get started a couple of weeks earlier by starting your foxglove indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1b. In the coldest months of winter we can expect an average low temperature of -55°F.

Always keep in mind that our actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 1b and it changes from year to year. Half of the time in Zone 1b we get a frost after June 15 so make sure that you are ready to cover your foxglove in the event of a surprise late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.