One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Hillsboro you can estimate when you can plant chinese cabbage by looking at the USDA zone info.

Planting Calendar for Chinese cabbage

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

Since chinese cabbage do well in moderate cold you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant chinese cabbage in Hillsboro 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 chinese cabbage and expect a good harvest is probably September. Any later than that and your chinese cabbage may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your chinese cabbage indoors.

Last Frost Date

The average date of last frost is March 15 in Hillsboro. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Hillsboro may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Hillsboro there is a last frost after March 15 so always be ready to protect your chinese cabbage in the event of a surprise late frost.

USDA Zone Info for Hillsboro

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Hillsboro

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