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

In Glen Carbon you can determine when it's the best time to plant chinese chives by checking out the USDA zone info.

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 tells us that you can plant them a little bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant chinese chives in Glen Carbon 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. If you wait any later than that and your chinese chives may not have a chance to really do well. Starting your chinese chives indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Glen Carbon. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Glen Carbon is an average the actual date of last frost is different every year. Half of the time in Glen Carbon last frost occurs after April 15 so always be ready to cover your chinese chives if you have one of those late frosts.

USDA Zone Info for Glen Carbon

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 Glen Carbon

You may be interested in your other planting guides for Glen Carbon.