When to Plant Foxglove in Zone 5b

One of the first steps you take when you are estimating 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.

In Zone 5b you can figure out when it's the best time to plant foxglove by referring to the USDA zone info.

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Planting Calendar for Foxglove

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

Foxglove are moderately cold tolerant which means that you can get them planted earlier than plants that are more sensitive to the cold.

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 5b 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. If you are starting your foxglove indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Zone 5b. In the coldest months of winter you should expect an average low temperature of -15°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 5b and it is different every year. Half of the time in Zone 5b there is a last frost after April 15 so make sure that you are prepared to protect your foxglove if you have a surprise late frost.

USDA Zone Info for Zone 5b

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 Zone 5b

You may be interested in your other planting guides for Zone 5b.