When can I plant Flowering Kale in Zone 6b

One of the best tools that we have as gardeners to help us determine our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The first chance to plant flowering kale in Zone 6b 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 you should plant them: Up to 5 weeks before last frost.

Flowering Kale can survive in mild cold which tells us that you can plant them just a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant flowering kale in Zone 6b 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 couple of weeks earlier.

Last Frost Date

In Zone 6b the average date of last frost happens on April 15. We should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Zone 6b is just an average and our actual date of last frost is different every year. Since half of the time in Zone 6b it frosts late in the year after April 15 be ready to protect your flowering kale if we have a late frost.

USDA Zone Info for Zone 6b

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Zone 6b

You may be interested in our other planting guides for Zone 6b.