When to Plant Napa cabbage in Aurora, CO

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

You can estimate when it's possible to plant napa cabbage in Aurora by checking out the USDA zone info.


Planting Calendar for Napa cabbage

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

Napa cabbage are very cold tolerant which tells us that you can start planting them much earlier than more sensitive plants.

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

The earliest that you can plant napa cabbage in Aurora 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 napa cabbage and expect a good harvest is probably September. If you wait any later than that and your napa cabbage may not have a chance to fully mature. Starting your napa cabbage indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Aurora. You should expect an average low temperature of -10°F in the coldest months of winter.

Always keep in mind that USDA zone info for Aurora is just an average and the actual date of last frost will vary from year to year. Since half of the time in Aurora last frost occurs after April 15 be ready to cover your napa cabbage in the event of a late frost.

USDA Zone Info for Aurora

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Aurora

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