One of the best tools that you have as gardeners to help us estimate 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.

You can determine when you can plant feverfew in Holmen by referring to 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.

Feverfew do well in some 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 feverfew in Holmen 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. Any later than that and your feverfew may not have a chance to really do well. You can get started a few weeks earlier by starting your feverfew indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Holmen. It might get as low as -25°F during the coldest months of winter.

Remember that USDA zone info for Holmen is an average and the actual date of last frost will vary from year to year. Half of the time in Holmen you get surprised by a frost after May 15 so just be sure to be ready to protect your feverfew in the event of one of those late frosts.

USDA Zone Info for Holmen

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 Holmen

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