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

You will be able to determine when it's a good idea to plant decorative kale by referring to the USDA zone info for Sioux City.

Planting Calendar for Decorative Kale

Frost tolerance for decorative kale:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Decorative Kale do well in mild cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant decorative kale in Sioux City is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant decorative kale and expect a good harvest is probably September. If you wait any later than that and your decorative kale may not have a chance to fully mature. Starting your decorative kale indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Sioux City. In the coldest months of winter you can expect an average low temperature of -20°F.

Since the USDA zone info for Sioux City is not always accurate the actual date of last frost is different every year. Half of the time in Sioux City you get surprised by a frost after April 15 so make sure that you are ready to protect your decorative kale in the event of a surprise late frost.

USDA Zone Info for Sioux City

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 Sioux City

You may be interested in your other planting guides for Sioux City.