The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In South Elgin you can figure out when it's a good idea to plant yarrow by referring to the USDA zone info.

Planting Calendar for Yarrow

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

Yarrow tend to make it in cold weather which means that you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant yarrow in South Elgin 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 yarrow and expect a good harvest is probably September. You probably don't want to wait any later than that or else your yarrow may not have a chance to fully mature. Starting your yarrow indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for South Elgin is an average and the actual date of last frost is different every year. Half of the time in South Elgin you get a frost after April 15 so make sure that you are prepared to protect your yarrow in the event of a surprise late frost.

USDA Zone Info for South Elgin

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in South Elgin

You may be interested in your other planting guides for South Elgin.