Medieval plant dyes (and modern)

As long as you have red, yellow and blue you can mix and match to make almost any colour. Some of these dye plants are more resistant to fading in sunlight or getting washed out of the fibre than others.

Any plant name that is in bold is a perennial (or biennial).

Red - 

Medieval European- Madder (Rubia tinctoria), Lady's Bedstraw/Cleavers (Galium verum)

Other- Amaranth (Hopi red dye), Dyer's Alkanet, Henna (Lawsonia inermis) (shrub), Joe Pye Weed, Dyer's Woodruff (Asperula tinctoria), Brazilwood (tree)

Orange - 

Medieval European- any yellow + Madder, or just Madder itself

Other- Dyer's Coreopsis (Coreopsis tinctoria), Orange Cosmos, Black Eyed Susan (Rudbeckia fulgida 'Goldstrum') (edges into dull yellow)

Dye, you fool!

Madder and dyer's chamomile. Dyer's chamomile smells just like chamomile tea, so my daughter didn't hate this as much as weld. Thank goodness she wasn't around for the woad.

I always used to get orange out of madder, but I've got the hang of it now. This is the madder with dyer's chamomile. The picture doesn't do the colour any justice. It's a quite nice tangerine.

Linden trees are extra-ordinarily useful

This tree is also commonly called basswood and lime wood (possible corruption of the Old English and Proto-Indo-European word lind (flexible). It is not related to citrus trees). The N. American version (Tilia americana) can be found from Mexico to Alaska, and there are two genus in Europe (little leaf- Tilia cordata, and large leaf- Tilia platyphyllos), which can be found in southern Norway and Sweden, down into Italy and as far east as the Black Sea. The little leaf genus is far more widespread, and can be found up into Russia and North-eastern Turkey as well as Spain.