One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant foxglove in Ypsilanti should be estimated by using 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 mild cold which means that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant foxglove in Ypsilanti 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 couple of weeks earlier by starting your foxglove indoors.

Last Frost Date

The average date of last frost is April 15 in Ypsilanti. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Ypsilanti is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Ypsilanti it frosts late in the year after April 15 so make sure that you are ready to protect your foxglove if you have one of those late frosts.

USDA Zone Info for Ypsilanti

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in Ypsilanti

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