One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to determine when it's possible to plant savoy cabbage by checking out the USDA zone info for Kennewick.

Planting Calendar for Savoy cabbage

Frost tolerance for savoy cabbage:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Savoy cabbage tend to make it in cold weather which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant savoy cabbage in Kennewick 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 savoy cabbage and expect a good harvest is probably September. If you wait any later than that and your savoy cabbage may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your savoy cabbage indoors.

Last Frost Date

In Kennewick the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Kennewick is just an average and the actual date of last frost is different every year. Half of the time in Kennewick you get surprised by a frost after April 15 so make sure that you are ready to cover your savoy cabbage in the event of one of those late frosts.

USDA Zone Info for Kennewick

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

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

Plants to Grow in Kennewick

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