When to Plant Cabbage in Frederick, CO

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.

The earliest that you can plant cabbage in Frederick can be determined by referring to the USDA zone info.


Planting Calendar for Cabbage

Frost tolerance for cabbage: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

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

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

The earliest that you can plant cabbage in Frederick 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 cabbage and expect a good harvest is probably September. If you wait any later than that and your cabbage may not have a chance to fully mature. If you are starting your cabbage indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Frederick. In the coldest months of winter you should expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Frederick is just an average and the actual date of last frost changes from year to year. Half of the time in Frederick you get surprised by a frost after April 15 so always be ready to cover your cabbage in the event of a surprise late frost.

USDA Zone Info for Frederick

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 Frederick

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