Is helenium cold hardy?
Is helenium cold hardy? Facts: Helenium Helenium bigelovii, bolanderi, and hoopseii are native to Oregon. Culture: Frost hardy, they prefer full sun (at least 6 hours of direct sun), well, drained soil and regular water. Propagate from seed or by division in early spring. Heleniums are hardy in zones 3-9. Hardiness: Helenium is hardy in […]
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