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.

By using the USDA zone info for Island Park it's a good idea to estimate when you can plant chrysanthemum.

Planting Calendar for Chrysanthemum

Frost tolerance for chrysanthemum:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant chrysanthemum until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant chrysanthemum 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 chrysanthemum and expect a good harvest is probably August. Any later than that and your chrysanthemum may not have a chance to really do well. You can get started a couple of weeks earlier by starting your chrysanthemum indoors.

Last Frost Date

The average date of last frost is April 15 in Island Park. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Island Park is just an average the actual date of last frost changes from year to year. Since half of the time in Island Park there is a last frost after April 15 be ready to cover your chrysanthemum if you have a surprise late frost.

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.