The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In South Portland you can determine when it's possible to plant savoy cabbage by referring to the USDA zone info.

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 can survive in cold weather which means that you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant savoy cabbage in South Portland 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. Any later than that and your savoy cabbage may not have a chance to grow to maturity. Starting your savoy cabbage indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in South Portland. In the coldest months of winter you should expect an average low temperature of -15°F.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for South Portland and it can change quite a bit from year to year. Since half of the time in South Portland it frosts late in the year after April 15 be ready to protect your savoy cabbage in the event of a surprise late frost.

USDA Zone Info for South Portland

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in South Portland

You may be interested in your other planting guides for South Portland.