Hardy perennials with striking, usually yellow.
There arespecies as well.
Suitable for borders; the plants are reliable and. Also excellent for .
Any fairly damp garden soil is suitable.
By division in spring.
Rudbeckia fulgida: Height 40-60 cm; flowering season mid summer to mid autumn; the ray florets being yellow or orange yellow, the disc black. Two varieties are known: var speciosa and var sullivantii . The latter is downy. Rudbeckia laciniata: Height to 3 m; flowering season late summer to mid autumn; large yellow flowers, single or double. Develops enormous clumps. Rudbeckia nitida: Height 100-120 cm; slightly drooping yellow flowers from mid summer to early autumn; the petals are strongly reflexed.