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

The earliest that you can plant flowering kale in Boonville should be figured out by referring to 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.

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

The earliest that you can plant flowering kale in Boonville 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. You probably don't want to wait any later than that or else your flowering kale may not have a chance to fully mature. You can get started a few weeks earlier by starting your flowering kale indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Boonville. In the coldest months of winter you should expect an average low temperature of -10°F.

It's important to remember that USDA zone info for Boonville is an average and the actual date of last frost changes from year to year. Half of the time in Boonville there is a last frost after April 15 so make sure that you are prepared to protect your flowering kale if you have a late frost.

USDA Zone Info for Boonville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Boonville

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