Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's a good idea to plant banana in River Falls by reviewing the USDA zone info.

Planting Calendar for Banana

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

Since banana are not cold tolerant it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant banana in River Falls 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 banana and expect a good harvest is probably August. Any later than that and your banana may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your banana indoors.

Last Frost Date

In River Falls the average date of last frost happens on May 15. You should expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for River Falls is just an average the actual date of last frost will vary from year to year. Half of the time in River Falls it frosts late in the year after May 15 so make sure that you are ready to cover your banana in the event of a late frost.

USDA Zone Info for River Falls

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 River Falls

You may be interested in your other planting guides for River Falls.