Heirloom seed
We save and replant seed from rare, regionally adapted dye and fibre plants each season. Each packet carries the memory of a place, a harvest, and the growers who kept it alive.
Heritage Gardening & Eco-Textile Craft
Grown with care. Dyed by nature.
Woad Crestzone cultivates rare beneficial plants using traditional organic methods, then transforms them into natural fabric dyes for lasting, sustainable textiles.
Our Practice
We tend beds of madder, indigo, weld, and walnut using organic, low-intervention methods passed down through generations of growers — then extract their colour to dye natural fibres by hand.
What Guides Us
Four principles behind every dye lot
Every batch we grow and dye follows the same set of commitments, from seed to finished cloth.
Organic cultivation
No synthetic fertiliser or pesticide ever touches our beds — only compost, rotation, and time. The result is living soil that can support colour, insects, birds, and future seasons.
Natural extraction
Colour is drawn from leaf, root, and bark using water, heat, and patience — no synthetic solvents. We record each recipe so a rich season can be repeated without erasing its natural variation.
Hand dyeing
Fibres are dyed in small batches, giving each length of cloth its own depth and variation. A careful rhythm of dipping, oxidising, rinsing, and drying lets the plant remain visible in the final textile.
Capabilities
From soil to finished textile
Our practice keeps cultivation, extraction, and making in conversation. The same hands can follow a plant from its first leaves to the colour it leaves on cloth.
01
Heritage gardening
Propagation and stewardship of rare beneficial and dye-bearing plant varieties. We map their needs across the year, protecting seed stock while leaving room for each variety to adapt.
02
Organic soil management
Composting, cover cropping, and rotation to build living, chemical-free soil. Our beds are planned as a connected system, so spent stems become compost and resting ground can recover.
03
Natural dye extraction
Small-batch pigment extraction from leaves, roots, bark, and hulls. We choose the gentlest method for each plant, balancing colour strength with the life of the material and the water it touches.
04
Eco-textile dyeing
Hand-dyeing of cotton, linen, and wool using plant-based dye baths and mordants. We work slowly enough to notice how every fibre takes colour, then finish each batch for honest, everyday use.
Showcase
A season of colour
A look at the gardens, dye vats, and finished cloth from our recent growing seasons.
The dye garden in late summer
Madder, weld, and indigo beds ready for harvest.
Reducing the indigo vat
A living fermentation vat, tended daily by hand.
Skeins drying in the shade
Wool and linen after their second dye bath.
How It Works
Four seasons, one cloth
There is no shortcut from seed to colour. Each stage gives the next one better information, creating a traceable rhythm of growing, gathering, testing, and making.
1
Sow and tend
Heirloom dye plants are sown in spring and tended without synthetic inputs.
2
Harvest by hand
Leaves, roots, and bark are gathered at their peak pigment concentration.
3
Extract colour
Plant matter is simmered, fermented, or steeped to release natural dye.
4
Dye the fibre
Natural fabrics are mordanted and dyed in small, closely watched batches.
The Collection
Seeds, dyes, and dyed textiles
A small selection of what we grow, extract, and hand-dye each season.
Heirloom indigo seed packet
Open-pollinated Japanese indigo, saved from our own dye garden. Sow it in a sunny bed, harvest the leaves through summer, and learn how a small patch can become a living blue vat.
¥680
Enquire
Madder root dye extract
Slow-dried root, ground for a warm, earthy red dye bath. The extract gives wool, linen, and cotton a layered madder red that deepens with repeated dips and patient rinsing.
¥2,400
Enquire
Hand-dyed indigo linen, 1m
Organic linen dyed in three passes through our fermentation vat. Its uneven blue surface holds the quiet marks of handwork, making it ready for a table, garment, or small home project.
¥5,200
Enquire
Natural dye starter kit
Three plant dyes, mordant, and a guide for first-time home dyeing. It is a measured, approachable way to begin with low quantities, clear recipes, and enough material to compare three distinct plant colours.
¥3,800
Enquire
Why It Matters
Textiles that return to the earth
Plant-dyed, organically grown textiles carry no synthetic residue — from the soil they grew in to the cloth on your table. Our choices are designed to honour the full life of a material, not just the moment it is sold.
Grown without synthetic chemicals, protecting soil life and nearby waterways.
Dye baths are plant-based and fully biodegradable, with no persistent runoff.
Every length of cloth is dyed and finished by hand in small, traceable batches.
Rare heirloom varieties are kept in cultivation season after season.
Case Study
Colour that changed a workshop
When a Kyoto weaving studio wanted a gentler dye process, we helped them replace synthetic lots with traceable plant colour.
"We replaced three synthetic dye lots with Woad Crestzone's madder and indigo, and our workshop's wastewater is now clean enough to return to the garden."
Kobayashi Textile Workshop, Kyoto
A measured practice
Small fields, lasting colour
Our numbers describe a working scale: enough continuity to learn from each season, and enough care to keep every batch accountable.
18
rare plant varieties grown
9
seasons in organic cultivation
240kg
plant dye extracted per year
0
synthetic dyes or fixatives
Voices
From growers and dyers we work with
"The depth of colour from hand-extracted madder is something a synthetic dye simply cannot match. Our students notice the difference before we explain it: the cloth feels quieter, warmer, and more alive."
Aiko Matsuda, weaver
"Woad Crestzone's seed exchange helped us bring three heirloom dye plants back into our own garden. The notes that came with each seed made the first season feel like a conversation rather than a test."
Ren Fujimori, grower
Questions
Frequently asked
Natural dyeing rewards curiosity, but it can also raise practical questions. Here are a few useful details before you visit, order, or begin your own first vat.
Are your dyes suitable for sensitive skin?
Yes. Our dye baths use only plant matter and natural mordants, with no synthetic fixatives or heavy metal salts.
Can I visit the dye garden?
We welcome visitors by appointment. Please contact us to arrange a garden and workshop tour.
Do you ship dyed textiles internationally?
We currently ship within Japan, with limited international orders available on enquiry.
Collaborators
Workshops and growers we work alongside
Good colour is collaborative. We share seed, recipes, and honest observations with people who are rebuilding a slower textile culture in their own places.
Workshops
Learn the craft with us
Seasonal workshops on organic dye cultivation and hand-dyeing techniques.
Garden Visit
¥1,500
Walk through the seasonal beds with a grower and see how rare beneficial plants fit into a working garden.
- Guided dye garden tour
- Seasonal plant notes
Dyeing Workshop
¥8,000
Spend a full day moving from plant material to finished cloth, with a small group and a recipe you can repeat at home.
- Full-day hand-dyeing session
- Take home one dyed length of cloth
- Materials included
Grower Mentorship
¥24,000
Build a practical dye garden plan across three seasons, from choosing varieties to saving the seed that follows.
- Three seasonal sessions
- Heirloom seed starter set
Field Notes
Recent writing from the garden
Field notes from the work behind the finished cloth: what we notice, what we are testing, and what a plant teaches us when we give it time.
Reading the leaves before harvest
Keeping an indigo vat alive through winter
Why we still save our own seed
Contact
Visit, enquire, or place an order
- Phone
- Address
- Hours
- Tue–Sat, 10:00–17:00