One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Island Park can be reviewed to figure out when it's the best time to plant crassula.

Planting Calendar for Crassula

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

Since crassula require warm weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant crassula in Island Park 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. 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 is on April 15 in Island Park. You should expect an average low temperature of 5°F in the coldest months of winter.

It's important to remember that USDA zone info for Island Park is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Island Park you get a frost after April 15 be ready to cover your crassula if you have one of those late frosts.

USDA Zone Info for Island Park

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Island Park

You may be interested in your other planting guides for Island Park.