Phacelia tanacetifolia, Purple Tansy
These floriferous green manure plants grow ferny foliage and showy clusters of pale blue flowers.
Purple tansy are quick-growing, annual plants that can be used to suppress weeds and improve soil structure in harvested areas of the kitchen garden or in other areas with bare soil.
The nectar-filled flowers attract beneficial insects to the garden.
Native to southwestern North America.
Height: 75 cm.