Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when you can plant chrysanthemum in Miles City by referring to the USDA zone info.

Planting Calendar for Chrysanthemum

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

Since chrysanthemum are not cold tolerant it's important to wait until after the last frost when the weather gets warmer before you can plant them.

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

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Miles City. In the coldest months of winter you should expect an average low temperature of -30°F.

It's important to remember that USDA zone info for Miles City is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Miles City last frost occurs after May 15 so make sure that you are prepared to cover your chrysanthemum in the event of a late frost.

USDA Zone Info for Miles City

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Miles City

You may be interested in your other planting guides for Miles City.