The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant oleander in Winterset should be figured out by checking out the USDA zone info.

Planting Calendar for Oleander

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

It's probably not a good idea to plant oleander until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant oleander in Winterset 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 oleander and expect a good harvest is probably August. Any later than that and your oleander may not have a chance to really do well. You can get started a few weeks earlier by starting your oleander indoors.

Last Frost Date

In Winterset the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -20°F.

Since the USDA zone info for Winterset may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Winterset it frosts late in the year after April 15 so be sure to be ready to protect your oleander in the event of one of those late frosts.

USDA Zone Info for Winterset

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 Winterset

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