The USDA Zone info is a great tool for gardeners to help us determine 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.

In Prairie Du Chien you can estimate when it's a good idea to plant saxifraga by reviewing the USDA zone info.

Planting Calendar for Saxifraga

Frost tolerance for saxifraga:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant saxifraga slightly earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

The earliest that you can plant saxifraga in Prairie Du Chien 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 saxifraga and expect a good harvest is probably August. Any later than that and your saxifraga may not have a chance to really do well. If you are starting your saxifraga indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Prairie Du Chien is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Prairie Du Chien there is a last frost after April 15 be ready to cover your saxifraga in the event of a late frost.

USDA Zone Info for Prairie Du Chien

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 Prairie Du Chien

You may be interested in your other planting guides for Prairie Du Chien.