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

One way of making a decision about when it's the best time to plant crassula is to look at the USDA zone info for Cottage Grove.

Planting Calendar for Crassula

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

You really shouldn't plant crassula until after the last frost because they require warm weather.

The earliest that you can plant crassula in Cottage Grove is May. However, you really should wait until June 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. Any later than that and your crassula may not have a chance to really do well. You can get started a couple of weeks earlier by starting your crassula indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Cottage Grove. It might get as low as -25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Cottage Grove is an average and the actual date of last frost will vary from year to year. Half of the time in Cottage Grove it frosts late in the year after May 15 so make sure that you are ready to cover your crassula in the event of one of those late frosts.

USDA Zone Info for Cottage Grove

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 Cottage Grove

You may be interested in your other planting guides for Cottage Grove.