One of the first steps you take when you are getting a good idea 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.

It's possible to determine when you can plant foxglove by referring to the USDA zone info for Cambridge.

Planting Calendar for Foxglove

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

You can plant foxglove a little bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant foxglove in Cambridge 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 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 when the weather gets warmer is on April 15 in Cambridge. It might get as low as 5°F during the coldest months of winter.

It's important to remember that USDA zone info for Cambridge may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Cambridge last frost occurs after April 15 be ready to cover your foxglove in the event of a surprise late frost.

USDA Zone Info for Cambridge

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 Cambridge

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