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When to Plant Fountain Grass in Cottage Grove, MN

One of the best tools that you have as gardeners to help us figure out 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 first chance to plant fountain grass in Cottage Grove can be estimated by looking at the USDA zone info.

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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 ok in very little cold which tells us that you can plant them just a tiny bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant fountain grass
Possibly ok, but a risky time to plant fountain grass
Probably not a good time to plant fountain grass

The earliest that you can plant fountain grass in Cottage Grove 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 fountain grass and expect a good harvest is probably August. Any later than that and your fountain grass may not have a chance to really do well. If you are starting your fountain grass indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Cottage Grove the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Cottage Grove and it changes from year to year. Half of the time in Cottage Grove it frosts late in the year after May 15 so be sure to be ready to cover your fountain grass if you have a surprise late frost.

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.