One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Polson can be reviewed to figure out when it's possible to plant fountain grass.

Planting Calendar for Fountain Grass

Frost tolerance for fountain grass:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Fountain Grass do well in some cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant fountain grass in Polson is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant fountain grass and expect a good harvest is probably August. You probably don't want to wait any later than that or else your fountain grass may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your fountain grass indoors.

Last Frost Date

The average date of last frost is April 15 in Polson. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Polson may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Polson last frost occurs after April 15 so just be sure to be ready to cover your fountain grass in the event of a late frost.

USDA Zone Info for Polson

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in Polson

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