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When to Plant Savoy cabbage in Altoona, IA

The USDA Zone info is a great tool for gardeners to help us estimate 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.

The earliest that you can plant savoy cabbage in Altoona should be figured out by reviewing 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.

Since savoy cabbage are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant savoy cabbage
Possibly ok, but a risky time to plant savoy cabbage
Probably not a good time to plant savoy cabbage

The earliest that you can plant savoy cabbage in Altoona 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 grow to maturity. If you are starting your savoy cabbage indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Altoona. In the coldest months of winter you should expect an average low temperature of -20°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Altoona and it changes from year to year. Half of the time in Altoona it frosts late in the year after April 15 so be sure to be ready to protect your savoy cabbage in the event of a surprise late frost.

USDA Zone Info for Altoona

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Altoona

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