Heliopsis, False Sunflower, Orange Sunflower, Ox-Eye, Rough Heliopsis 'Prairie Sunset'

Heliopsishelianthoides

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Heliopsis (hee-lee-OP-sis)
Species
helianthoides (hee-lee-an-THOY-dees)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Bloom Color
Gold (yellow-orange)
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Milford, Connecticut

Stonington, Connecticut

Chicago, Illinois

Saint Charles, Illinois

Gravity, Iowa

Ellsworth, Maine

Apex, North Carolina

Fargo, North Dakota

Albrightsville, Pennsylvania

Minocqua, Wisconsin

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Gardener's Notes:

3
positives
1
neutral
1
negative
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V
Alberta, AB (Zone 3a) | March 2014 | negative

Rural Alberta, Canada, zone 3a, clay loam, pH 7.8.
One of these plants volunteered into one of my perennial beds about seven years...Read More

M
(Zone 3b) | June 2007 | positive

Such a beauty with its dark purple stems. Mine got very tall the second year, almost 56 inches, so I may have to move it to the back of...Read More

G
(Zone 5a) | May 2006 | neutral

The plant tag that came with mine says it can grow in partial sun as well.

This is a patented plant.

J
Apex, NC (Zone 7a) | July 2005 | positive

We love the heliopsis! Cheery yellow flowers on purple stems. It's been blooming since mid-May here in the NC Piedmont, with no signs of ...Read More

M
Ellsworth, ME | May 2005 | positive

This is a gorgeous, red stemmed, dependable in z 4 perennial. It did need support but I am trimming one clump this year so it will stem ...Read More

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