One of the best tools that you have as gardeners to help us determine 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 yarrow is to look at the USDA zone info for Elk City.

Planting Calendar for Yarrow

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

Since yarrow are very cold tolerant you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant yarrow in Elk City 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. Any later than that and your yarrow may not have a chance to grow to maturity. You can get started a little bit earlier by starting your yarrow indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Elk City. It might get as low as 0°F during the coldest months of winter.

Keep in mind that USDA zone info for Elk City is an average and the actual date of last frost changes from year to year. Half of the time in Elk City you get a frost after April 15 so be sure to be ready to cover your yarrow in the event of a late frost.

USDA Zone Info for Elk City

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Elk City

You may be interested in your other planting guides for Elk City.