Stinging Nettle: Harvesting, Processing and Recipes

Those of us living in the Pacific Northwest (and many other regions around the world) are fortunate to be gifted every spring with an abundance of Stinging Nettle (Urtica dioica).  While it’s sting can be unpleasant, it teaches us to pay attention to our surroundings and I believe that’s a good thing.  It also offers food, medicine and fiber if one knows how to properly harvest it.  Here at the Wolf College, we adhere as closely as we can to the following Honorable Harvesting Guidelines for every plant we collect:

Wolf Camp and the Wolf College founder, Chris Chisholm, about to harvest Stinging Nettle (the Pacific Northwest's #2 survival food) for dinner.

Wolf Camp and the Wolf College founder, Chris Chisholm, about to harvest Stinging Nettle (the Pacific Northwest’s #2 survival food) for dinner.

  1. Do you need it?  Harvest with a purpose or plan in mind, not just for the fun of it.
  2. Harvest only as much as you will use and process it as soon as possible (don’t waste it).
  3. 1 in 20 rule.  It is ok to harvest a plant if there are 20 others available to maintain the population.
  4. Leave Grandmother.  Allow the biggest and best plants to remain so they can continue to propagate the healthiest population.
  5. Leave damaged plants or plants with “residents.”  Select quality material for your food and medicine.  If a critter makes it’s home there, choose another.  Harvest 1/3 or less of an individual plant (leave some roots) so it can continue to survive and thrive.
  6. Harvest with a clean cut so the plant will heal well and continue to survive and thrive.
  7. Avoid polluted areas.
  8. Offer appreciation and bring positive energy to your harvest.
  9. Never put anything in your mouth unless you are 100% sure it is safe to ingest.

How do I identify Stinging Nettle?

Fortunately stinging nettle has a distinctive look to it.  You’ll notice the first leaves emerging from snow or soil in late January (in the Pacific Northwest).  The leaves and stem are vibrant green and pubescent (hairy), sometimes with a hint of purple.  As the nettle grows, the strongly

These young nettles emerged in late January here in Washington.  At this size, I harvest the top and throw them into a stir fry.

These young nettles emerged in late January here in Washington. At this size, I harvest the tops and throw them into a stir fry.

serrate/toothed margins or edges of the leaves become more evident.  Each leaf has a twin on the opposite side of the erect central stem and they’re arranged such that one pair is in the 12 and 6 o’clock positions.  The next set down is slightly larger and is at 3 and 9 o’clock.  The next set down is even larger and back at 12 and 6 o’clock, and so on.  The leaves have a characteristic heart shape to them with a small stem attaching the cleft or top of the heart to the central stem.  The base or point of the heart aims away from the central stem.

By late spring, the nettles are 3 to 6+ feet high, the largest leaves are upwards of 7 inches long and they are flowering lovely whitish/greenish inflorescences or clusters.  These clusters will soon go to seed and become slightly brown.  And as late summer turns to autumn, the leaves will wither and fall and the stems will turn from green to brown to whitish/gray as they overwinter.  The bare stalks may decompose completely before new leaves emerge from the underground rhizomes or they may remain to oversee the beginning of the next generation of foliage.

If you are still unsure whether a plant is indeed a stinging nettle, you can opt to touch it and see what happens.  If you feel a sting and a small welt arises, then you have confirmation of the plant’s identity.  If not, then perhaps you could consult a field guide such as Plants of the Pacific Northwest Coast by Pojar and MacKinnon (the best field guide, bar none, for this region).

When do I harvest Stinging Nettle?

This stinging nettle is starting to flower and will soon go to seed.  Many believe nettle ought not to be harvested for food during or after this stage.

This stinging nettle is starting to flower and will soon go to seed. Many believe nettle ought not to be harvested for food during or after this stage.

You may harvest nettles from the time the new leaves emerge from the ground until late fall after the flowers have gone to seed but before the rains begin to rot the stems (while they still maintain their green color and have leaves attached).  It all depends upon your goal.

If you would like to use nettles for food or tea, then harvest them before they flower.  Some believe that at this stage the nettles form cystoliths or calcium concretions (aka bladder stones) that are bad for the urinary tract.  You can find many online sources that say nettles at that stage are bad for the kidneys.  I’ve not personally found scientific evidence that nettles are harmful after flowering and I don’t want to spread mistruths.  Alternately, I don’t want to offer advice that could do harm.   So I shall err on the side of caution and recommend that you harvest prior to flowering until reliable and replicatable evidence to the contrary becomes available.  Fortunately, individual plants will often be at different reproductive stages depending on their location, substrate, overstory, etc.  So, look around and you can usually find some that are harvestable where others are not.

I like to harvest nettles for rope-making after they’ve gone to seed (this allows for propagation) and prior to heavy rains that will cause the stems to rot.

How do I harvest Stinging Nettle without getting stung?

Here you can see the characteristic heart shape and serrate edges of a stinging nettle leaf.

Here you can see the characteristic heart shape and serrate edges of a stinging nettle leaf.

The easy answer is to use scissors and wear long sleeves, long pants and work gloves.  But it’s much more interesting to harvest nettles when you understand how the stinging process works and learn how to handle (and even eat!) them sans gloves without getting stung.  When looking at a stinging nettle, you can see little hairs on the stem and leaves.  These hairs are hollow and when they get under your skin, the tips break off and allow the formic acid (among other things) under your skin.  Now I don’t know if every hair is hollow or if every hollow hair has acid associated with it.  I do know that sometimes the lightest touch will get you stung and sometimes it takes effort to get stung.  The key is that the hairs on the leaves all aim from the cleft or top of the leaf to the point or bottom of the leaf.  If you run your finger from cleft to point, you will not get stung and you will impress your friends.  If you run your finger from the pointy end up toward the cleft and central stem, chances are excellent you will get stung.  It’s as simple as that.

Wolf Camp and the Wolf College co-owner and lead instructor, Kim Chisholm, demonstrates how to safely harvest stinging nettle leaves without gloves.

Wolf Camp and the Wolf College co-owner and lead instructor, Kim Chisholm, demonstrates how to safely harvest stinging nettle leaves without gloves.

Let’s imagine you wish to harvest some nettles, and you have your scissors but forgot your gloves.  No problem, you say, because you know the secret (or you pull your sleeves down over your fingers).  All you to do is cut the portion you need, hover your fingers above and below the leaf, then pinch it.  Voila, no sting, because you know the hairs don’t point straight out, they angle down the leaf.  All you’ve done is press them flat against the leaf where they cannot poke you.  Good job!  Now you can place the nettle in your collecting bag and continue harvesting.  If you’ve forgotten your scissors, you can harvest leaf by leaf (but that takes a long time).  If you choose to go this route, be extra careful.  When you select your leaf and pinch it, look at the location of the nearby leaves before you pull it from the stem.  Beware the smaller upper leaves that dangle down and zap the top of your hand.  And be mindful of the larger lower leaves that sneak out and get you on the wrist as you’re watching out for the wily upper leaves.  Stinging nettle is a plant that demands respect and I honor it.

What part do I harvest?

stinging-nettle-hairs-close-upI harvest the tender tops (usually 4-6 leaves or 2-3 leaf sets) for food.  There are a number of species of moth and butterfly larvae that feed on nettles.  Check the terminal (top) bud for signs of an inhabitant before harvesting.  It just takes a quick glance to notice that the tip has been chewed, is slightly blackened or there is frass (waste material from plant-eating insects) visible.  If the nettles are very young then I only harvest the top bud and first leaf set.  Harvesting the terminal (top) bud will stimulate lateral bud growth causing the plant to become more bushy and allowing you to harvest continually from the same plant.

For fiber, harvest the entire stem.  Clip it near the ground.  If you’re wearing gloves, grasp the base in one hand and run your other hand from base to tip in order to strip off the leaves.  I strip it where I harvest it and allow the leaves to remain, decompose and provide nutrients to the soil from whence they came.

How do I process Stinging Nettle for food?

Give critters a chance to escape from freshly harvested nettles prior to processing or storing.

Give critters a chance to escape from freshly harvested nettles prior to processing or storing.

When I return home with my harvest, I’ll decide whether to use them right away or store them for later use.  If using them right away, I’ll often lay them out on a clean surface or in a colander for a few minutes to allow critters a moment to escape.  Then I run them under cold tap water to rinse away any dirt or debris and give them a last look before processing.  If you’re not concerned about a little dirt or extra protein, then they’re fine to use as is.  Please do not put them directly into a salad or you and your guests will be in for an unpleasant surprise.  I recommend handling them with gloves or tongs at this point, though you can choose to do it without.  Freshly harvested nettle will store in a bag in the vegetable drawer of your refrigerator, unwashed, for at least 2-3 days (probably longer).  When you’re ready for them, just pull them out, rinse if you wish and go for it!

Dry your nettles and use them to make a delicious and nutritious tea.  It is excellent on its own and also tasty when added to mint or pine family tea.

Dry your nettles and use them to make a delicious and nutritious tea. It is excellent on its own and also tasty when added to mint or pine family tea.

If you would like to dry your nettles for tea, there are many options.  I put mine in a paper bag or cardboard box in front of my furnace and let the warm, blowing air do the job.  Resist the urge to reach in and stir them up because they can still sting you while they’re moist.  Once they’re dry, they are much safer to handle since they lose the ability to sting.  However, the hairs are still there and can be irritating to the skin or give you a sliver if you’re not careful.  You can tell they are ready to store in a glass jar when the stems snap.  Make sure not to dry them to the point where they lose their green color and turn brown or black.  You can also hang them to dry, use a dehydrator or be creative with your method.  It’s just fine to use fresh plant material to make tea, I just prefer the taste of dried nettle.

I run my fresh nettles through a food processor, then store them in the freezer for later use.

I run my fresh nettles through a food processor, then store them in the freezer for later use.

Sometimes I like to freeze my nettles for use throughout the year.  I toss them, raw, into my food processor and process until finely chopped.  Then I put them into freezer-safe containers and store until I need them.  The mechanical action of the food processor will break the hollow hairs so they are unable to sting you.  Some people recommend blanching the nettles (adding them to boiling water, plunging into ice water, then using).  I prefer to store and use them raw because many of the nutrients I want to ingest are lost to the water and thrown out when blanching.  Experiment and you will find a way that works best for you and your family.

What kinds of foods can I make with Stinging Nettle?

Steam stinging nettle on top of your veggie stir fry or mix in as you would spinach.

Steam stinging nettle on top of your veggie stir fry or mix in as you would spinach.

Stinging nettle can substitute for spinach in any cooked recipe (they lose their sting when cooked).  You can add them to lasagna, make pasta with them, throw them in soups or stews, etc.  Online recipes abound.  My favorite ways to eat them are:  a simple saute, steamed on top of sauteed veggies or a raw pesto.   To make the saute, melt a little butter, Smart Balance or heat your oil of choice in a skillet.  Toss in your nettles (I leave the stems on if tender, or I saute with tough stems and cut them off prior to serving), saute until crisp (your first time), add salt and pepper to taste, then enjoy.  Cooking the nettles will neutralize the sting, but the hairs are still visible.  This can be rather alarming when eating them for the first few times.  That’s why I recommend cooking until crisp – so you feel a little more confident.  You can vary the time/tenderness in the future to suit your individual preference.

Here’s my recipe for Raw Stinging Nettle Pesto:

  •  5-6 packed cups raw stinging nettle (you can choose to wash or not)
  • 3/4 c parmesan – grated (the food processor will take care of it, too, if you wish to throw in a chunk instead)
  • 2-3 Tbsp lemon juice
  • 1/2 c toasted pine nuts (or nut of choice)
  • 2 garlic cloves (more if you love garlic
  • Extra Virgin Olive oil to preferred consistency (approx. 1/4 to 1/2 cup)

Place the first 5 ingredients into your food processor and turn it on or pulse.  Slowly add olive oil until it reaches your desired consistency.  Serve with crackers, chopped vegetables or on pasta.  The pesto will turn dark on top as the plant material is exposed to air (like a cut apple turning brown), but this doesn’t impact the flavor.  To minimize this, you can add a thin layer of olive oil on top if your pesto is in your serving dish, increase the amount of lemon juice in your recipe (keep taste-testing to make sure it’s not too much), continue to stir it so the dark part mixes in, or serve promptly.  Refrigerate any un-used portion.  Also, I recommend consuming your pesto the day you make it.  I find that the flavor becomes too powerful if it sits overnight.  You can substitute basil for a portion of the nettle but it will tend to overpower the flavor.  This recipe is a Wolf College favorite!

What do I do if I get stung by a Stinging Nettle?

Jewelweed is one of the many potential remedies for a stinging nettle sting.  It works for me every time!

Jewelweed is one of the many potential natural remedies for a stinging nettle sting. It works for me every time!

Getting stung is a bit of a bummer but not a very big deal.  And, it’s certainly not enough of a negative to keep me from harvesting and enjoying these amazing plants.  I rarely get stung (unless I’m showing others what it’s like) but when I do there are a few natural remedies nearby that I like to use.  You’ll find that different remedies work for different people, so you may have to try a few to find what works for you.  My brother swears that mud does the trick for him.  Doesn’t do a thing for me except get me dirty.  My #1 go-to plant to stop the sting is Jewelweed.  Simply crush a leaf, rub it on and the sting is eliminated.  Some people make a spit poultice out of Common (Broad-Leaf) or Lance-Leaf Plantain.  Others crush and apply Yellow Dock leaves or rub the welt/sting with the spores on the under side of Sword Fern leaves.  And, if you’re so inclined, you can smash some of the stems with a rock and apply the juice from the plant that stung you or from it’s roots.  If you’re close to home, you can apply aloe vera gel, make and apply a paste of baking soda and water, apple cider vinegar, Desitin (diaper rash cream), tooth paste, etc.  I encourage you not only to research (field guide or online) the plant remedies listed above, but go outside and look around to make sure you can identify them in the field where you’ll actually be when you need them.

Final notes on Stinging Nettles:

The internet boasts many medicinal uses for stinging nettle which may or may not be true.  I encourage you to do your research well by finding reputable and independent sources of information.  Consider working with a respected herbalist or naturopathic physician in your area – someone who uses plants as medicine on a regular basis and knows from experience what they will and will not do.

Stinging nettles have the strongest natural plant fiber in this region (Western Washington) and are very easy to process into rope.  I’ll be doing a post on this in the fall (when I harvest for fiber), so watch for that.

Yes, you can eat a leaf raw, freshly harvested from the plant.  It must be done in such a way as to break the hollow hairs or else they can sting you in the mouth.  You can find videos online that show you how to do this.  Or, come to one of our plant classes, workshops, camps or expeditions where we’ll demonstrate then invite you to give it a try.

Kim McKillip Chisholm is co-owner of Wolf Camp and the Wolf College.  She has a B.S. in Wildlife Science from the University of Washington College of Forest Resources in Seattle and has been a volunteer dog-handler with King County Search Dogs since 2000.  Her passions include sharing her love of nature with others, wild edibles and herbal medicine, wilderness preparedness, bird identification and behavior and, of course, chickens! For training with Kim on wild edible and medicinal plant topics, check out:

Spring Workshops:
• 
Wilderness Survival Seminar
• 
Wild Foods Foraging & Herbal Medicine-Making

Summer Camps & Expeditions in Western Washington:
• 
Wilderness Survival Training and Trek
• 
Wild Ethnobotany and the Herbal Foray

18 comments to Stinging Nettle: Harvesting, Processing and Recipes

  • bob fitz

    i would like like to send a pic of sting nettle and see if you think it is
    they DO NOT have any prickers on them so i am confused :)
    thanks

  • Caroline Colbert

    I enjoyed your blog about harvesting nettles..I am in Wales, UK right now and the nettles are beginning to leaf in the garden here..I bought nettle tea last year in the USA while visiting family and found I quite liked it. Your information is very helpful. One thing I wanted to tell you that I found out years ago when studying herbs is that the dock of the nettle is its own sting cure..if you do happen to use the whole plant or a bigger stem..use the end of that stem to to rub on the sting..it has its own antidote for the toxin..

    • Hi Caroline,
      Thank you for your kind words and suggestion. I’ve read before that stinging nettle provides its own remedy for the sting but have yet to try it. Looks like I’ll have to do a bit of urticating this spring and see if it works for me. :-) I’m not sure what pine family trees you have in Wales, but I really like to drop a few Douglas fir (Pseudotsuga menziesii), western hemlock tree (Tsuga heterophylla) or grand fir (Abies grandis) needles into my nettle tea – very tasty. Anyway, thanks again for reading and commenting on my blog!

  • Chris Reaves

    Hello

    I have these growing in my garden and around my shed. I was ready to kill them all but maybe I won’t after reading this. In the So Cal area. I will post some pics if you are interested.

    Chris

  • Jack Phillips

    Question: have you tried vacuum packing fresh, unwashed nettles for later eating? i.e. using plastic packaging,sealed edges? That would make for easy transport and delivery in prime condition. Is that practical? I find harvesting in the early morning before the heat of the day to be best for the plant and me! If later in the day, a little spritz from a spray bottle keeps nettle happy and fresh. jp

  • Sheryl Musfeldt

    I just researched stinging nettle for the past 3 years and finally got to pick some young ones today and they are very tasty. All I did was saute them good in butter in a pan till fully cooked and ate them. I was impressed.

  • Bonne King

    I came across this site whilst looking for foraging tips, which led me to nettles. We were going to cut down the nettle bush and chuck it but now I think we will be making a few meals out of them :-)

  • Mary Ellen

    I learned about stinging nettles about 2 yrs. ago, and really love anything that is a powerhouse of nutrients. I looked everywhere in the woodsy trails in upstate NY, near creeks, and only found a very small patch. I ordered some seeds online and planted them in a big pot outside, near my garden, and they came up last year, only a couple of plants. This year I have more. I plan on planting lots of them in pots. Supposed to be very good for bone strength. So is horsetail tea. I love this stuff!

  • Denise

    Are nettles suppose to smell like cat urine? I started growing mine in a large wooden planter this spring; i love them but they sink! Also, some stems are starting to flower and others not; I’m growing them for tea and one source of calcium; are the stems that are not flowering still good to harvest for tea?

    • No one I ever knew thought they smelled like that. Sounds like a cat is using your planter. As for the flowering, as mentioned in the article, you can’t use nettles extensively after they flower because at that point, they develop compounds that are hard on your bladder and related organs. You can cut them back before they flower and keep the green leaves coming instead. But after they flower, it’s best to let them live out their annual growth and use the skin of the stems for fiber after they start to die but before they mold.

  • […] strained to release the goods. The dried tea leaves are tasty all on their own, but the experts at Wolf College say it also pairs well with any member of the pine […]

  • Lara

    You mentioned you would be doing a post on using fibers to make rope. Would love to read that!

    • I wanted to write it with a video demo last month, but no time was available. It’ll rise to the top of the list soon I hope! We are doing a workshop on fibers and rope making the third Saturday in October, so maybe we can videotape the instruction then and post it soon thereafter. Crossing fingers:)

  • Jennifer

    Hi Chris, thanks for the ethical guidelines to foraging. I feel these are important. It brings us into a greater awareness of what we are participating in as we gather. I’ve been juicing nettles raw and find that to be a superb tonic. Also, this year, I started to work with the seeds, once they are dried, brown and dangling like catkins. They are easy to brush into a container on a dry day and offer no resistance. I sprinkle them on salads and soups, the taste is neutral. I would be interested to know other’s experiences of this. I contemplate that after several years relationship with the plant, the suggestion to use different parts for medicine is offered.

    • Thanks for the comment, and for the other redirecting it to Kim. Hopefully others will respond to your note about their experienced with seeds, etc. I agree with you about the seeds. I love them fresh, but I haven’t seen any study about their nutritional value or potential negatives.

  • Yenia

    I actually learned about stinging nettles out of a book by Victor Hugo – yep, the “Les Miserables” guy. I love using them for cooking and I like using nettle rope in the garden, too, though I wouldn’t call it quick to make – easy yes, quick no. I especially like throwing some stinging nettle into a stew or fruit smooothie, though beware – it doesn’t work with all fruit, you need something with a strong taste.

    About the stings – I stopped using rubber gloves (fabric is not much use) years ago and just pick the by hand. I get stung a little, but you get used to that. More importantly: I used to have a very unpleasant, itchy neurodermatitis condition on my hands. It lessened quickly once I started picking the nettles by hand and is gone for years now. Yay for doing weird and unusual stuff!

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