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

In Waupun you can determine when it's possible to plant crassula by looking at the USDA zone info.

Planting Calendar for Crassula

Frost tolerance for crassula:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since crassula are not cold tolerant it's important to wait until after the last frost before you can plant them.

The earliest that you can plant crassula in Waupun 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 crassula and expect a good harvest is probably August. If you wait any later than that and your crassula may not have a chance to fully mature. You can get started a few weeks earlier by starting your crassula indoors.

Last Frost Date

On average the last frost is on April 15 in Waupun. It might get as low as -20°F during the coldest months of winter.

It's important to remember that USDA zone info for Waupun may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Waupun it frosts late in the year after April 15 be ready to protect your crassula in the event of a surprise late frost.

USDA Zone Info for Waupun

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 Waupun

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