The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's the best time to plant asparagus is to check out the USDA zone info for Waukesha.

Planting Calendar for Asparagus

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

Asparagus tend to make it in quite a bit of cold which tells us that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant asparagus in Waukesha is February. However, you really should wait until March if you don't want to take any chances.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Waukesha. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Waukesha is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Waukesha it frosts late in the year after April 15 so make sure that you are ready to cover your asparagus if you have a late frost.

USDA Zone Info for Waukesha

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Waukesha

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