Before planting it is a good idea to find your USDA Zone info to determine 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.

It's possible to figure out when it's possible to plant banana by referring to the USDA zone info for Tualatin.

Planting Calendar for Banana

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

Since banana are not cold tolerant you need to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant banana in Tualatin 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. If you wait any later than that and your banana may not have a chance to really do well. Starting your banana indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Tualatin. In the coldest months of winter you can expect an average low temperature of 15°F.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Tualatin and it will vary from year to year. Since half of the time in Tualatin it frosts late in the year after March 15 be ready to cover your banana if you have a late frost.

USDA Zone Info for Tualatin

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Tualatin

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