Mediterranean Sea Holly - Spain

Star of Persia - Turkestan 

Meadow Sage - World Wide

Burnet - Native

Ornamental Onion - Asia Minor

 

I didn't find too much about these plants and natural dye, I mostly came across Easter Egg natural dye recipes, when I typed in Star of Persia, Meadow Sage, and Ornamental Onion. But I think those recipes were referring to Persian rug dying techniques, onion skins, and looking to meadows for wild flowers.