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.

By referring to the USDA zone info for Reedsburg you will be able to estimate when to plant asparagus fern.

Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You can not plant asparagus fern until after the last frost because they do not do well in cold weather.

The earliest that you can plant asparagus fern in Reedsburg is April. However, you really should wait until May 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 fully mature. You can get started a few weeks earlier by starting your asparagus fern indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Reedsburg. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Reedsburg is just an average the actual date of last frost will vary from year to year. Half of the time in Reedsburg it frosts late in the year after April 15 so be sure to be ready to cover your asparagus fern in the event of a late frost.

USDA Zone Info for Reedsburg

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Reedsburg

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