When to Plant Iberis in Whitewater, WI

One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant iberis in Whitewater by checking out the USDA zone info.


Planting Calendar for Iberis

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

You can plant iberis a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant iberis
Possibly ok, but a risky time to plant iberis
Probably not a good time to plant iberis

The earliest that you can plant iberis in Whitewater 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. If you wait any later than that and your iberis may not have a chance to grow to maturity. Starting your iberis indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Whitewater and it will vary from year to year. Half of the time in Whitewater last frost occurs after April 15 so make sure that you are prepared to protect your iberis in the event of one of those late frosts.

USDA Zone Info for Whitewater

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 Whitewater

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