One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when to plant feverfew by checking out the USDA zone info for Onalaska.

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 a little earlier in the year than more sensitive plants.

The earliest that you can plant feverfew in Onalaska is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant feverfew and expect a good harvest is probably August. If you wait any later than that and your feverfew may not have a chance to fully mature. You can get started a little bit earlier by starting your feverfew indoors.

Last Frost Date

In Onalaska the average date of last frost happens on May 15. In the coldest months of winter you can expect an average low temperature of -25°F.

Since the USDA zone info for Onalaska is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Onalaska it frosts late in the year after May 15 be ready to cover your feverfew in the event of a late frost.

USDA Zone Info for Onalaska

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

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

Plants to Grow in Onalaska

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