One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's a good idea to plant flowering kale in Red Bluff by checking out 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 bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant flowering kale in Red Bluff is January. However, you really should wait until February 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 October. You probably don't want to wait any later than that or else your flowering kale may not have a chance to really do well. If you are starting your flowering kale indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Red Bluff the average date of last frost happens on February 15. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Red Bluff may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Red Bluff last frost occurs after February 15 be ready to cover your flowering kale if you have a surprise late frost.

USDA Zone Info for Red Bluff

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Red Bluff

You may be interested in your other planting guides for Red Bluff.