Solidago
A hardy perennial with pretty fluffy golden heads on 2 to 3-foot stems in late summer and autumn. Butterflies and also Hoverflies love this flower and they eat pests like greenfly and blackfly, so a good companion plant in the organic garden. The plant quickly spreads to make a carefree patch.
It can also be used to give yellow and brown dye from the leaves and the flowers. (see our books section for more about natural dyeing)
Mordant; Alum