Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Clay you can determine when it's possible to plant foxglove by reviewing the USDA zone info.

Planting Calendar for Foxglove

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

Since foxglove do well in moderate cold you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant foxglove in Clay 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 fully mature. Starting your foxglove indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Clay. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Clay is an average the actual date of last frost changes from year to year. Since half of the time in Clay you get a frost after April 15 be ready to protect your foxglove if you have a surprise late frost.

USDA Zone Info for Clay

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Clay

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