Using oak as a natural dye

For anyone interested in natural dyeing with oak leaves, this is a wonderful dye source to begin with. As a dye source, the leaves are rich in tannin and can provide a surprising range of natural hues. You can naturally dye with the leaves, branches, bark & acorns, all producing beautiful earthy tones.

King of the forest

In ancient Ireland, the Oak held special meaning to the Celts. Considered the King of the forest, oak is associated with strength, nobility, inspiration & knowledge. The Oak itself has a lineage dating back roughly 85 million years. Historically, the oak was essential to the Irish way of life, providing shelter, fuel, building materials, food & habitats for wildlife.

With over 500 species of Oak, known for their longevity, they can live for 300-400 years. Deciduous & evergreen varieties are characterised by their wavy leaf pattern & distinguishable acorn seed.

What parts of the oak tree can you use for natural dyeing?

As a dye plant, the leaves, bark, acorns, twigs & oak galls create colour. These parts contain tannin, which acts as a natural mordant, ensuring beautiful, long-lasting colours on plant fibres. The oak galls contain the highest concentration of tannin, used to mordant plant fibres such as linen, cotton or hemp. Oak was used throughout history to create dark greys & ink when combined with iron.

How to naturally dye with oak leaves:

If you’re curious about natural dyeing with oak leaves, gather enough to experiment with: 2-4 handfuls for small experiments and more for larger tests.

• Soak the plant parts in hot water for 2-4 days.
• Bring to a gentle simmer & simmer for 3-4 hours.
• When the water changes colour & you have a nice strong liquid, your dye is ready to use.
• Turn off the heat, let the dye cool completely, then strain out the plant parts & add your fibre.
• Return to the heat & keep your fibre in the dye until you’re happy with the colour.
• For initial experiments, consider using small swatches of natural fibre to learn about the colours & hues of the dye. You can follow the same instructions to work with the other parts of the oak that produce colour (branches, bark & acorns).

Learn more about natural dyeing

If you’d like to explore more natural dye sources like this one, my ebook, Guide to Plant-Based Colour, covers over 200 plants and dye sources, organised by colour. Get the ebook →

x Kathryn