About

Heliopsis scabra 'Incomparabilis' is a rhizomatous herbaceous perennial in the sunflower family that produces daisy-like yellow flowerheads from July to September. Stems are typically upright and can reach roughly 0.4–1.5 m, often stiff enough to need staking. Leaves are toothed and may be smooth, rough or hairy in texture. The cultivar flowers in midsummer and into early autumn.

Wikipedia contributors, CC BY-SA 4.0 — Heliopsis helianthoides

About the genus

Heliopsis is a genus of herbaceous flowering plants in the family Asteraceae, native to dry prairies in North and South America. The sunflower-like composite flowerheads are usually yellow, up to 8 cm (3 in) in diameter, and are borne in summer. Species are commonly called ox-eye or oxeye.

Wikipedia contributors, "Heliopsis", CC BY-SA 4.0 — Heliopsis

In the garden

Heliopsis scabra 'Incomparabilis' belongs to the genus Heliopsis in the Asteraceae and is one of several garden cultivars bred from plants in this group. It forms shoots from rhizomes and carries the composite heads typical of the group, with yellow ray florets surrounding a central cluster of disc florets. Flowering occurs from July to September in the UK. Plant it where it receives full sun and where the soil is reasonably fertile and retains moisture; these are the conditions most Heliopsis cultivars favour. Stems can be relatively stiff and erect, so planting towards the rear of a mixed border or among ornamental grasses that give lateral support works well. Allow room for the rhizomes to spread slowly rather than crowding them. Heliopsis scabra 'Incomparabilis' suits mixed herbaceous borders, prairie-style schemes and informal cutting beds where its summer display and upright habit provide structure. The flowerheads cut well for summer bouquets, and after flowering the plant sets achenes that measure about 5 mm in length.