The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's a good idea to plant decorative kale in Zone 3b by looking at the USDA zone info.

Planting Calendar for Decorative Kale

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

Since decorative kale do well in moderate cold you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant decorative kale in Zone 3b is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant decorative kale and expect a good harvest is probably August. If you wait any later than that and your decorative kale may not have a chance to fully mature. Starting your decorative kale indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Zone 3b. It might get as low as -35°F during the coldest months of winter.

Since the USDA zone info for Zone 3b is not always accurate the actual date of last frost is different every year. Since half of the time in Zone 3b it frosts late in the year after May 15 be ready to protect your decorative kale if you have a surprise late frost.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

You may be interested in your other planting guides for Zone 3b.