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.

In Windsor you can estimate when to plant iberis by referring to 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.

Iberis are one of those plants that can tolerate a little bit of cold weather which means that you can start planting them earlier than more sensitive plants.

The earliest that you can plant iberis in Windsor is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant iberis and expect a good harvest is probably October. Any later than that and your iberis may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your iberis indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Windsor. You should expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Windsor is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Windsor last frost occurs after February 15 be ready to cover your iberis if you have a surprise late frost.

USDA Zone Info for Windsor

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Windsor

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