Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Inverness can be reviewed to estimate when it's possible to plant foxglove.

Planting Calendar for Foxglove

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

Foxglove tend to make it in a little bit of cold which means that you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant foxglove in Inverness is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant foxglove and expect a good harvest is probably October. If you wait any later than that and your foxglove may not have a chance to fully mature. 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 all chance of frost has passed is on February 15 in Inverness. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Inverness is just an average and the actual date of last frost is different every year. Half of the time in Inverness you get a frost after February 15 so just be sure to be ready to cover your foxglove if you have a surprise late frost.

USDA Zone Info for Inverness

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Inverness

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