Walnut-dyed tshirt

Black Walnut Dye

Now is the time to head out and collect those wonderful green spheres from underneath Black Walnut trees!

But not for what you might think. While these nuts are both nutritious and delicious, the shells are unbelievably hard and the meat is very difficult to extract. So we'll leave that problem to the squirrels and use them instead for a much easier and more interesting project: Natural Dye!

Black Walnut hulls produce a dye that is color-fast,
light-fast and wash-fast. Plus, this wonderful earth-tone brown is a fantastic base for natural camouflage on clothing.

You must keep in mind, however, that these unassuming green hulls make an extremely strong dye! While in many ways this makes it easier to work with when using cellulose-based fibers (i.e., cotton, basket materials, cordage) than many other natural dyestuffs, the down-side is that you must be very careful when making the dye, as it can be somewhat caustic and IT WILL ALSO DYE YOUR SKIN!
(And here's the proof!)

Want to learn more about making dyes from all natural materials?
Sign up for our
Natural Dyes


ALWAYS wear protective gloves whenever you handle the hulls or the dye!
(If you choose not wear gloves, be very sure to wash your hands FREQUENTLY throughout the process!)

Tips & Tricks for Black Walnut Dye

Step-by-step Instructions for making Black Walnut Dye:

  1. Collect about 15-20 Black Walnuts. This is enough for about one gallon of dye.
  2. Gathering Pitch10-15 Black Walnuts

  3. While wearing protective gloves (dishwashing gloves or better), remove the husks. This can be easily done with just your fingers, or you can place the walnut on a stump or other "anvil" and pound it with a rock to break open the hull. Our preferred method, however, is to remove the hulls when gathering. Stomp on the nut and slide your foot to separate the nut from the hull.  
  4. Break open the hull Opened Hull

  5. The husks can be used right away or dried in a dehydrator, next to a wood stove, or in the oven for later use. If you are doing simple air drying (single layer in a sunny area) make sure they get plenty of air circulation or they will mold. As the opened hulls are exposed to air they will quickly begin to oxidize and turn a dark brown. This is the color that it stains, so ALWAYS wear gloves when handling un-dried hulls, wear rubber gloves or wash your hands frequently, or be prepared to have brown fingers for several weeks!! (See the proof in pictures!)
  6. Oxidizing Hulls

  7. While still wearing your protective gloves, crush or crumble the hulls into pea-sized bits.
  8. Crumble the hulls Crush hulls into pea-sized bits

  9. Using either a stainless steel or enamelware pot, heat one gallon of water to a full boil, add the crushed hulls and stir. Reduce heat and simmer, uncovered, for about an hour. While the dye is simmering, scour the material you plan to dye. (This step is especially important for cellulose-based fibers!)
  10. Simmer hulls for about an hour

  11. To Scour: Using an enamelware or stainless steel pot, add 1 TBSP of washing soda and 1/2 tsp of detergent per 1 gallon of water and stir to dissolve.
  12. Add washing soda and detergent

  13. Bring to a boil then reduce heat. Add the material you plan to dye and stir it into the water until it is fully saturated. FOR CELLULOSE-BASED MATERIALS (i.e., cotton, plant fibers, etc.): Simmer uncovered, stirring occasionally, for one to two hours. FOR PROTEIN-BASED MATERIALS (i.e., wool, bone, quills): Allow material to stand in hot water, covered, for one to two hours.
  14. Add materials to hot water Stir to saturate Simmer for an hour or two

  15. Rinse your materials thoroughly to remove all the soap. The water will have turned a mucky brown color from all the oils etc. that have been scoured out of the fibers.
  16. Rinse thoroughy Rinse to remove all soap Rinse thoroughly Water turned murky brown

  17. To Dye: Wring out the excess water and add the damp, scoured material to the simmering dye bath. (You can also dry the scoured materials and store them until you are ready to use your dye.)
  18. Wring excess water Add to dye bath

  19. Continue to simmer, stirring occasionally, until the material is at least one shade darker than your desired color. (Usually at least 15-20 minutes or longer.)
  20. Stir occasionally Leave in dye until at least one shade darker

  21. Remove the material and rinse thoroughly, until the rinse water runs clear. Not rinsing out all the excess dye at this stage may cause it to come off on your skin when you are working with or wearing the materials. If, after a thorough rinsing, you decide the material is not dark enough, return it to the dye bath and continue to simmer.
  22. Rinse thoroughly Rinse out all excess dye Rinse until water runs clear

  23. After you are finished all your dying projects, remove pot from heat and allow to cool. Once the dye bath has cooled, pour the excess dye into a glass container and store it until next time. Allow your materials to dry completely before using - the color will change somewhat as they dry, and as the dye oxidizes.
  24. Store in a glass container for further use Walnut dyed items

    NOTE: Dyed clothing should be washed seperately the first time in case you did not rinse the item thoroughly enough. Excess dye WILL stain any other clothes! After that, wash as usual with other like-colored items.


    Have Fun, and Go Nuts for Natural Dyes!

    Walnut-dyed tshirt Go nuts for natural dyes!

    Want to learn more about making dyes from all-natural materials?
    Sign up for our Natural Dyes workshop this December


    Just HOW important is it to wear gloves or wash frequently while working with Black Walnuts?

    On their Survival Outing in August, Hunter-Gatherer graduates David & Lara found out the hard way that washing their hands just once or twice was not frequently enough! The stain on their hands lasted for several weeks — learn from them and wear gloves!

    Walnut-dyed hands Wear gloves!