Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant feverfew in Yorkville can be determined by checking out the USDA zone info.

Planting Calendar for Feverfew

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

Since feverfew do well in moderate cold you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant feverfew in Yorkville 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 really do well. You can get started a little bit earlier by starting your feverfew indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Yorkville. In the coldest months of winter you should expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Yorkville is just an average and the actual date of last frost changes from year to year. Half of the time in Yorkville you get surprised by a frost after April 15 so make sure that you are ready to protect your feverfew if you have one of those late frosts.

USDA Zone Info for Yorkville

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Yorkville

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