When can I plant Flowering Kale in Zone 2b

Before planting it is a good idea to find our USDA Zone info to estimate our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The USDA zone info for Zone 2b should be used to estimate when it's the best time to plant flowering kale.


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.

Since flowering kale do well in moderate cold you can plant them a little earlier in the year than other plants that might not handle the cold.

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 2b is April. However, you really should wait until May 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 August. If you wait any later than that and your flowering kale may not have a chance to fully mature. If you are starting your flowering kale indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 2b the average date of last frost happens on May 15. We can expect an average low temperature of -45°F in the coldest months of winter.

Remember that USDA zone info for Zone 2b is just an average and our actual date of last frost is different every year. Half of the time in Zone 2b we get a frost after May 15 so be sure to be ready to cover your flowering kale in the event of a late frost.

USDA Zone Info for Zone 2b

Here is the info for USDA Zone 2b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-45°F
Highest Expected Low-40°F

This means that on a really cold year, the coldest it will get is -45°F. On most years you should be prepared to experience lows near -40°F.

Plants to Grow in Zone 2b

You may be interested in our other planting guides for Zone 2b.