One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to estimate when to plant chives by checking out the USDA zone info for Sterling.

Planting Calendar for Chives

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

Since chives are one of those plants that can tolerate quite a bit of cold weather you can plant them quite a bit earlier in the year than other plants that might not handle the cold.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Sterling. It might get as low as -20°F during the coldest months of winter.

It's important to remember that USDA zone info for Sterling is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Sterling it frosts late in the year after April 15 be ready to protect your chives if you have one of those late frosts.

USDA Zone Info for Sterling

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Sterling

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