The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for La Crosse it's possible to determine when it's possible to plant asparagus fern.

Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant asparagus fern until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant asparagus fern in La Crosse is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant asparagus fern and expect a good harvest is probably August. Any later than that and your asparagus fern may not have a chance to really do well. You can get started a little bit earlier by starting your asparagus fern indoors.

Last Frost Date

The average date of last frost is May 15 in La Crosse. You can expect an average low temperature of -25°F in the coldest months of winter.

Remember that USDA zone info for La Crosse is not always accurate and the actual date of last frost is different every year. Since half of the time in La Crosse it frosts late in the year after May 15 be ready to cover your asparagus fern if you have a late frost.

USDA Zone Info for La Crosse

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 La Crosse

You may be interested in your other planting guides for La Crosse.