When to Plant Banana in Washington, IA

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant banana in Washington should be estimated by looking at the USDA zone info.

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Planting Calendar for Banana

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

Banana are not cold tolerant which means that it is important to wait until it warms up after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
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A good time to plant banana
Possibly ok, but a risky time to plant banana
Probably not a good time to plant banana

The earliest that you can plant banana in Washington 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. You probably don't want to wait any later than that or else your banana may not have a chance to really do well. Starting your banana indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Washington the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Just be sure to remember that USDA zone info for Washington is just an average and the actual date of last frost changes from year to year. Since half of the time in Washington you get a frost after April 15 be ready to protect your banana in the event of a late frost.

USDA Zone Info for Washington

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 Washington

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