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 banana in Rock Falls can be estimated by looking at the USDA zone info.

Planting Calendar for Banana

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

You should not plant banana until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant banana in Rock Falls 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 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. If you are starting your banana indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Rock Falls the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Rock Falls and it is different every year. Since half of the time in Rock Falls you get a frost after April 15 be ready to cover your banana if you have one of those late frosts.

USDA Zone Info for Rock Falls

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Rock Falls

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