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.

It's possible to determine when it's the best time to plant foxglove by referring to the USDA zone info for Oklahoma City.

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 just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant foxglove in Oklahoma City 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. You can get started a little bit earlier by starting your foxglove indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Oklahoma City. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Oklahoma City may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Oklahoma City there is a last frost after April 15 be ready to protect your foxglove if you have a surprise late frost.

USDA Zone Info for Oklahoma City

Here is the info for USDA Zone 7a.

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

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Oklahoma City

You may be interested in your other planting guides for Oklahoma City.