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

One way of making a decision about when it's possible to plant iberis is to consult the USDA zone info for Sheboygan.

Planting Calendar for Iberis

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

Iberis can survive in a little bit of cold which means that you can plant them a bit earlier in the year than more sensitive plants.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Sheboygan. You can expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Sheboygan and it will vary from year to year. Half of the time in Sheboygan you get a frost after April 15 so just be sure to be ready to cover your iberis if you have a late frost.

USDA Zone Info for Sheboygan

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Sheboygan

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