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.

You will be able to estimate when it's a good idea to plant asparagus fern by reviewing the USDA zone info for Winona.

Planting Calendar for Asparagus Fern

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

It's probably not a good idea to plant asparagus fern until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant asparagus fern in Winona 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 grow to maturity. You can get started a little bit earlier by starting your asparagus fern indoors.

Last Frost Date

The average date of last frost is April 15 in Winona. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Winona is an average the actual date of last frost is different every year. Since half of the time in Winona it frosts late in the year after April 15 be ready to protect your asparagus fern in the event of a surprise late frost.

USDA Zone Info for Winona

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Winona

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