The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 foxglove in Rocky River should be determined 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.

Foxglove can survive in a little bit of cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant foxglove in Rocky River 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. If you wait 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 few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Rocky River. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for Rocky River is an average and the actual date of last frost changes from year to year. Half of the time in Rocky River there is a last frost after April 15 so always be ready to cover your foxglove in the event of a late frost.

USDA Zone Info for Rocky River

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Rocky River

You may be interested in your other planting guides for Rocky River.