A clump-forming perennial to 1.4m tall, with ovate leaves and deep yellow, double flower-heads which age to light yellow, opening over a long period from early summer to early autumn ...

A clump-forming, herbaceous perennial to 1.2m tall, with ovate leaves. From late summer to early autumn it bears single, occasionally semi-double flowerheads, with deep golden yellow ray florets and ...

The foliage does mellow to a bronze-green as the heat of summer envelops the garden. Soil conditions and pH: ‘Bleeding Hearts’ and Heliopsis helianthoides in general like basic lime soils. It is ...

Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. Biological Bulletin Vol. 42, No. 4, Apr., 1922 The Relation of the Madreporite to the P ...

The idea for ‘Burning Hearts’ came in a dream during the hot summer of 2004. Bulk up the distinctive dark stems of Heliopsis ’Summer Nights,’ deepen the purple leaf tones, and top it off with a bright ...

While sunflower sea stars (Pycnopodia helianthoides) typically regenerate missing or damaged arms, the disease causes the body to dissolve into a jelly-like puddle and they die within days.