Scientific Name:
Heliopsis helianthoides
Pronunciation:
hee-lee-OP-siss hee-lee-an-thoe-EYE-deez
Common Name:
false sunflower, oxeye sunflower
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Short-lived perennial similar to sunflower; leaves opposite, ovate, most 6-12cm long x 3-6cm wide, margin coarsely serrate; flowers daisy-like to 7cm wide, rays yellow-orange, disk florets brownish-yellow.
Habit:
Upright
Form:
Vase
Texture:
Coarse
Mature Height:
0.7 - 1.3m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
North America
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Landscape Uses:
Attract butterflies, Cut flower or foliage, Summer interest
Additional Info:
Google. Cultivars shown may include H. 'Sommersonne' (summer sun heliopsis) and H. 'Helhan' (Loraine Sunshine).
Leaf Morphology:
Form:
Simple
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Heavily veined, Pinnate venation
Surfaces:
Glabrous
Shapes:
Ovate
Apices:
Acute
Bases:
Rounded
Margins:
Serrate
Inflorescence Type:
Head (capitulum)
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, Orange, Yellow
Flower Time at Peak:
Jun, Jul, Aug, Sep
Fruit Type:
Achene
Fruit Colour:
Brown
Fruiting Time:
Sep, Oct
Bark or Stem Colour:
Green, Red
Propagation:
Seed
Maintenance:
Low
Pest Susceptibility:
Aphids, Mildew (Pest resistant, Disease resistant, Drought tolerant)
