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 common way of getting a good idea when it's possible to plant chinese chives is to use the USDA zone info for Olney.

Planting Calendar for Chinese chives

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

You can plant chinese chives just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant chinese chives in Olney 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. Any later than that and your chinese chives may not have a chance to fully mature. You can get started a little bit earlier by starting your chinese chives indoors.

Last Frost Date

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

Since the USDA zone info for Olney is just an average the actual date of last frost changes from year to year. Since half of the time in Olney you get a frost after April 15 be ready to cover your chinese chives if you have one of those late frosts.

USDA Zone Info for Olney

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 Olney

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