As a native plant, helenium grows in moist, low-lying meadows or at the edges of damp woodlands. ... Planted in early spring, helenium plants grow quickly to a mature size of three to five feet tall and spread to 24 inches wide.

Do you cut back helenium in the fall?

Divide congested helenium clumps every few years, in spring or autumn. Heleniums die back over winter, so cut them back after flowering.

Should I pinch helenium?

When the plants reach 6 to 8 inches in spring or early summer, pinch them back to encourage strong branching and denser growth. ... Cut the plant back to the ground in fall after flowering is complete. HELENIUM PROPAGATION. In time, Helenium clumps will become denser with decreased flowering.