One of the first steps you take when you are making a decision about your gardening schedule is find your 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.

A common way of figuring out when it's a good idea to plant napa cabbage is to refer to the USDA zone info for Torrington.

Planting Calendar for Napa cabbage

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

Since napa cabbage are very cold tolerant you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant napa cabbage in Torrington is March. However, you really should wait until April 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 August. If you wait any later than that and your napa cabbage may not have a chance to really do well. You can get started a few weeks earlier by starting your napa cabbage indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Torrington. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Torrington is an average the actual date of last frost will vary from year to year. Since half of the time in Torrington you get a frost after May 15 be ready to protect your napa cabbage in the event of a late frost.

USDA Zone Info for Torrington

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Torrington

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