General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Plant Height: 3 to 4 feet (.9-1.2m)
Plant Spread: 18 to 24 inches (46-61cm)
Flowers: Showy
Flower Color: Yellow
Bloom Size: 1"-2"
Flower Time: Summer
Late summer or early fall
Other: Dead head to encourage prolonged bloom.
Uses: Cut Flower
Wildlife Attractant: Butterflies
Propagation: Seeds: Suitable for wintersowing
Other info: Will bloom first year from wintersown seed
Propagation: Other methods: Division
Containers: Suitable in 1 gallon

Common names
  • Rough Heliopsis
  • False Sunflower
  • Ox-Eye
  • Orange Sunflower
  • Smooth Oxeye

Photo Gallery
Photo by robertduval14
Location: Midewin National Tallgrass Prairie, Wilmington, IL
Date: 2018-08-20
flowers and foliage
Location: Darwell Rolling Woods, Alberta
Date: 2015-07-31
Location: Midewin National Tallgrass Prairie, Wilmington, IL
Date: 2018-08-20
group of plants in bloom

Date: c. 1959
photo from the Frikart Pflanzenkatalog, 1959
Location: Main Botanical Garden at the Academy of Sciences in Moscow
credit: Andrey Korzun
Photo by clintbrown
Location: Maryland
Date: 2015-07-26
Location: Maryland
Date: 2015-07-26
Location: Maryland
Date: 2015-06-08

Date: 2012-01-30
  • Posted by BookerC1 (Mackinaw, IL - Zone 5a) on Jan 10, 2012 9:36 PM concerning plant:
    This is a butterfly nectar plant, and is a great addition to any butterfly garden. Very easy to grow, either sown in situ or by the wintersowing method.

    Also sometimes known as Ox-Eye False Sunflower
  • Posted by Catmint20906 (PNW WA half hour south of Olympia - Zone 8a) on Aug 23, 2014 6:04 PM concerning plant:
    False Sunflower (Heliopsis helianthoides var. scabra) differs from the species plant (Heliopsis helianthoides) by having thicker leaves and hairy, rough-textured or scabrous leaves and stems. Like H. helianthoides, var. scabra is native to North America, enjoys full sun and average to dry soil, and produces bright yellow blossoms in mid to late summer.
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Aug 29, 2018 6:40 PM concerning plant:
    This Rough Oxeye is the rough-leaved variety that basically differs from the Smooth-leaved variety in having leaves rough to touch like sandpaper. It is found growing farther west than the Smooth Oxeye.
Plant Events from our members
Catmint20906 On June 8, 2015 Bloomed
christine2 On May 1, 2008 Obtained plant
many from Tim Amos
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