The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In South Sioux City you can estimate when to plant scabiosa by looking at the USDA zone info.

Planting Calendar for Scabiosa

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

You can plant scabiosa just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant scabiosa 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 scabiosa and expect a good harvest is probably September. Any later than that and your scabiosa may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your scabiosa indoors.

Last Frost Date

The average date of last frost is April 15 in South Sioux City. It might get as low as -20°F during 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 changes from year to year. Since half of the time in South Sioux City it frosts late in the year after April 15 be ready to cover your scabiosa in the event of a 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.