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Heliopsis helianthoides

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Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: low

Soil Moisture: dry, moist

Soil Description: average, poor, loam, clay, sand, gravel/rock

Height: 3'-5'

Bloom Time: June, July, August, September

Bloom Color: yellow

Leaf Color: green

Hardiness Zone: 4, 5, 6, 7, 8

Additional Tags: attracts bees, attracts birds, attracts butterflies, clumping, colonizing, cottage garden plant, cut flowers, drought tolerant, naturalizing

Heliopsis helianthoides (smooth oxeye)
  • Heliopsis helianthoides (smooth oxeye)
  • Heliopsis helianthoides (smooth oxeye)
  • Heliopsis helianthoides (smooth oxeye)

Pricing & Availability

Description

Heliopsis helianthoides

Also known as:

smooth oxeye

,

oxeye sunflower

,

false sunflower

,

early sunflower

Scientific Synonyms:

Description

Heliopsis helianthoides is a real show-stopper that produces an abundance of flowers that are up to 3" across, with bright yellow rays and an orange-yellow central disk. The plants are robust, bushy, with stiff, sometimes branched flowering stems that can reach a height of 5'. The leaves are dark green, serrated, with a rough texture, up to 5" long, and resemble those of blackeyed Susans.

Cultivation

Versatile, easy to grow, and trouble free, smooth oxeye is a prolific bloomer with a flowering period that can last up to 3 months, from early to late summer. It is not particular about soil type, and is tolerant of dry conditions. This species performs best in full-sun, but will tolerate some shade although this will lead to weak stems with a tendency to flop. The root system is fibrous, forming dense clumps over time. This species will self seed and can establish large colonies in naturalized areas. Zones 4-8

Propagation

Easy to propagate from seed. A 30 day period of cold, moist stratification will improve germination rates. Cuttings made of the to 12" inches of the plant in spring will readily root. The easiest propagation method is by root division in fall.

Additional Notes

The specific epithet, helianthoides, means sunflower-like. This is why it is sometimes also called false sunflower.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AL, AR, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae Aster family
Genus Heliopsis heliopsis
Species Heliopsis helianthoides smooth oxeye