One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when to plant feverfew is to use the USDA zone info for Glen Carbon.

Planting Calendar for Feverfew

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

Feverfew do well in a little bit of cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant feverfew in Glen Carbon 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 feverfew and expect a good harvest is probably September. You probably don't want to wait any later than that or else your feverfew may not have a chance to grow to maturity. Starting your feverfew indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Glen Carbon. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Glen Carbon is an average the actual date of last frost is different every year. Since half of the time in Glen Carbon last frost occurs after April 15 be ready to protect your feverfew if you have a late frost.

USDA Zone Info for Glen Carbon

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 Glen Carbon

You may be interested in your other planting guides for Glen Carbon.