One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's the best time to plant carnation in South Sioux City by using the USDA zone info.

Planting Calendar for Carnation

Frost tolerance for carnation:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since carnation do well in cold you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant carnation in South 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 carnation and expect a good harvest is probably September. Any later than that and your carnation may not have a chance to fully mature. You can get started a little bit earlier by starting your carnation indoors.

Last Frost Date

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

Since the USDA zone info for South Sioux City may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in South Sioux City you get a frost after April 15 be ready to protect your carnation if you have a surprise late frost.

USDA Zone Info for South 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 South Sioux City

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