One of the best tools that you have as gardeners to help us estimate 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.

A way of determining when it's a good idea to plant chinese chives is to look at the USDA zone info for Bethel Park.

Planting Calendar for Chinese chives

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

Chinese chives are moderately cold tolerant which means that you can plant them earlier than more sensitive plants.

The earliest that you can plant chinese chives in Bethel Park 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 chives and expect a good harvest is probably September. You probably don't want to wait any later than that or else your chinese chives may not have a chance to fully mature. You can get started a few weeks earlier by starting your chinese chives indoors.

Last Frost Date

On average the last frost is on April 15 in Bethel Park. You can expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Bethel Park is not always accurate and the actual date of last frost is different every year. Since half of the time in Bethel Park last frost occurs after April 15 be ready to cover your chinese chives if you have one of those late frosts.

USDA Zone Info for Bethel Park

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Bethel Park

You may be interested in your other planting guides for Bethel Park.