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

In Carpentersville you can estimate when to plant flowering kale by looking at the USDA zone info.

Planting Calendar for Flowering Kale

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

Flowering Kale do well in some cold which means that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant flowering kale in Carpentersville 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 flowering kale and expect a good harvest is probably September. If you wait any later than that and your flowering kale may not have a chance to grow to maturity. Starting your flowering kale indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Carpentersville. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Carpentersville is just an average and the actual date of last frost changes from year to year. Half of the time in Carpentersville you get a frost after April 15 so make sure that you are ready to protect your flowering kale in the event of a late frost.

USDA Zone Info for Carpentersville

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 Carpentersville

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