Its best-known use is to stop bleeding when applied to a wound, like styptic powder. The leaves are antimicrobial and pain-relieving. 

Yarrow is also used as a sleep aid, on rashes and itchy skin, bruises, sprains and swelling, to relieve congestion from allergies and colds, as an aid for eczema and dry skin, and to induce sweating to break fevers. The leaf, flower and stem are used.

Remember, before using this or any herb, please research it fully. 
You are responsible for your own health. 

Yarrow can be used in so many ways, including teas, tinctures, washes, infused oil, compresses, wound powder (made from finely powdered dried herbs), or infused in witch hazel as a spray for varicose veins. 

You can also purchase yarrow essential oil and flower essence. I've just scratched the surface, there is so much more this herb can do.

I include yarrow in my all-purpose salve and use it on humans, horses and goats alike.  

Historically yarrow was brewed into tea and then used as a wash or as a compress on wounds to prevent infection. 

NOTE: use of yarrow should be avoided during pregnancy and if you use blood thinners. Always research before using an herb. You are responsible for your own health.

It really shines in skincare products, where it nourishes and restores irritated skin and promotes healing. It's safe for sensitive skin and is extremely nourishing.

How to identify yarrow

Easily recognized, yarrow (Achillea millefolium) has ferny, feathery foliage. It was the first herb I learned to identify and use. 

You'll find wild yarrow growing in grassy areas in full sun. The plants are about a foot tall, topped with flower heads that are each comprised of many small flowers. 

How to harvest yarrow

Usually I harvest enough to make a big batch of infused oil to use throughout the year, but the past couple of years there hasn't been as much yarrow growing in the pasture, so I left them untouched so they could reproduce.

This year I'm happy to see that there is a bumper crop out there.

I often double- or even triple-infuse the oil with several herbs, which might include plantain, chickweed, comfrey, and lemon balm, depending on what I have on hand. I make the oil into salves or creams, or use it in my homemade goat milk soap.

Double-infusing refers to infusing a single herb, straining out the plant material when it's finished, then adding another herb to the same oil and letting it infuse. 

This works well when the plants aren't all ready to harvest at the same time. 

Harvest yarrow on a warm, sunny day when the plants are in full bloom. Cut the stem just above a leaf node. You can use both the flowers and the leaves.

Wait until the dew has dried, but before the plants' essential oils have dissipated in the heat of the day.

You can use fresh yarrow to make infused oil if you wish, but you should let the plants wilt for several hours before adding the oil. This will reduce the moisture in the plants, which can make the oil more likely to go rancid or to develop mold.

How to dry yarrow

Use kitchen shears to cut the flower heads off the stems, as close to the flowers as you can. Then, holding the top of the stem in one hand, run your hand down the stem from top to bottom to remove the leaves.

If you've cut some multi-branched stems, cut them into single stems before removing the leaves. It's much easier.

You can dry yarrow in a dehydrator on a low heat setting, or just spread out the herbs on a cookie sheet and dry in a very slow oven. Set the oven as low as it will go so you don't burn or cook the herbs, and check often.

Related post: How to Dry Homegrown Herbs

The herbs are "done" when the pieces snap easily and cleanly.

Add your dried yarrow to a storage container and store in a cool, dry, dark place. Be sure to label your container - dried herbs tend to look alike and it's easy to forget which jar is which.

Blood stop powder

To make a blood stop powder, process the dried yarrow leaves in a coffee grinder or blender until they form a fine powder. You can use the flower heads as well but I've found they don't grind up as fine.

Keep the powder in a small dry container such as an empty pill bottle and label it well with the contents and the directions for use.

To use, pour the powder over a wound, then blow off the excess.

If the wound is bleeding profusely, the bleeding won't stop, or the wound is deep and may need stitches, seek medical help immediately.