Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant runner beans in Oelwein can be figured out by reviewing the USDA zone info.

Planting Calendar for Runner beans

Frost tolerance for runner beans:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You can not plant runner beans until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant runner beans in Oelwein 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 runner beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your runner beans may not have a chance to grow to maturity. You can get started a little bit earlier by starting your runner beans indoors.

Last Frost Date

The average date of last frost is April 15 in Oelwein. You can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Oelwein is just an average the actual date of last frost changes from year to year. Since half of the time in Oelwein there is a last frost after April 15 be ready to protect your runner beans in the event of one of those late frosts.

USDA Zone Info for Oelwein

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Oelwein

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