This blue-producing plant is related to cauliflower and broccoli!
These tiny little flowers make a lovely blue dye
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Japanese indigo fixes readily to plant fibers
You'll find many excellent uses for Russian sage. Dyeing cloth just happens to be one of them.
Goldenrod--bees love it, and so do home dye-makers!
Deadheading yellow chamomile will keep it producing abundantly
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Black eyed Susan is easy to grow and will give you lovely gold colors.
Calendula is a garden favorite for many reasons and this versatile flower will make nice yellow to green and brown dye.
With the right mixture, bloodroot will create a range of colors.