Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Marshfield you can figure out when it's possible to plant asparagus by checking out the USDA zone info.

Planting Calendar for Asparagus

Frost tolerance for asparagus:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant asparagus quite a bit earlier in the year because they do well in cold.

The earliest that you can plant asparagus in Marshfield 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 asparagus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your asparagus may not have a chance to grow to maturity. Starting your asparagus indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Marshfield is not always accurate the actual date of last frost changes from year to year. Half of the time in Marshfield there is a last frost after May 15 so always be ready to cover your asparagus in the event of a late frost.

USDA Zone Info for Marshfield

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 Marshfield

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