2 years to reach maturity
Sweet Coneflower Overview
Rudbeckia subtomentosa is a rhizomatous, perennial species with an upright, clumping habit. Foliage is toothed, grey-green and this species has ribbed stems. Flowers are daisy-like, with many narrow, yellow petal rays and dark brown central disc cones, flowers are produced densely on branched stems.
Common problems with Sweet Coneflower
How to propagate Sweet Coneflower
Divide in spring.