One of the best tools that you have as gardeners to help us determine your 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 your area.

In Clemson you can figure out when it's a good idea to plant flowering kale by reviewing 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 bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant flowering kale in Clemson 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 fully mature. Starting your flowering kale indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Clemson. You can expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Clemson is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Clemson you get surprised by a frost after March 15 be ready to protect your flowering kale in the event of a surprise late frost.

USDA Zone Info for Clemson

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Clemson

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