• Photo of Helianthus divaricatus (Helianthus divaricatuss)

Plant Profile: Helianthus divaricatus

Taxonomy: Helianthus divaricatus

Names

Rough Sunflower, Woodland Sunflower

  • Photo of Helianthus divaricatus (Helianthus divaricatuss)

Phonetic Spelling:hee-lee-AN-thus dy-vair-ih-KAY-tus

Genus:Helianthus

Species:divaricatus

Family:Asteraceae

The Woodland Sunflower, a native herbaceous perennial belonging to the aster family, can reach heights of 5 to 7 feet. This plant is indigenous to eastern and central North America and thrives in various regions of North Carolina, particularly in rocky or sandy woodlands and dry open areas. Its leaves are arranged oppositely, featuring smooth to slightly serrated edges and a hairy underside, often lacking a stem. The striking yellow flowers bloom from early summer and persist into early fall.

This sunflower is straightforward to cultivate in average, well-drained soils and prefers partial shade. It adapts well to a variety of soil types and is suitable for use in native or pollinator gardens, naturalized spaces, or woodland settings. Once established, it demonstrates drought resistance and serves as a valuable resource for wildlife.

Regarding potential issues, taller specimens may require staking for support.

For further details on Helianthus, additional information is available.

Helianthus divaricatus Feature Summary

Helianthus divaricatus Image Gallery

Tags

#drought tolerant
#wildlife plant
#showy
#nectar plant
#low maintenance
#specialized bees
#food source
#fire
#medium flammability
#NC native
#deer resistant
#pollinator plant
#native wildflower
#larval host plant
#food source fall
#bird friendly
#butterfly friendly
#pollinator garden
#bee friendly
#silvery checkerspot butterfly

Similar Plants

Helianthus divaricatus Feature Summary

Attributes
Eastern and central North America
AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KY , LA , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OH , OK , PA , RI , SC , TN , VA , VT , WI , WV
This is a larval host plant that supports Silvery Checkerspot (Chlosyne nycteis). The Silvery Checkerspot has at least 1-2 broods in the north from June-July in the deep south and Texas, they have as many as 3-4 broods from May through September. The flowers are attractive to butterflies and other pollinators. Its seeds are favored by songbirds, ruffed grouse, quail, mourning doves, and small mammals. Leave standing dead flowers into the winter as natural bird feeders. Members of the genus Helianthus support the following specialized bees: Andrena (Callandrena s.l.) accepta, Andrena (Callandrena s.l.) aliciae, Andrena (Callandrena s.l.) helianthi, Melissodes (Eumelissodes) agilis, Dieunomia (Dieunomia) heteropoda, Megachile (Sayapis) pugnata, and Paranthidium (Paranthidium) jugatorium.
Perennial
medium flammability
Flowers
Flowers have bright 8-15 yellow rays and slightly darker yellow center disks. The flowers have 8-15 petals and rigid stems. Bloom in late summer.
Gold/Yellow
7 - 20 petals/rays
1-3 inches
Leaves
Leaves are opposite with a smooth to slightly toothed (shallow serrate) margin and hairy underside. The leaves often have no stem and are broadest at the base.
Ovate
Lanceolate
3-6 inches
1-3 inches
Stem
The stem is rough to the touch.
Whole Plant Traits
Perennial
Native Plant
Wildflower
Herb
Erect
Clumping
Cultural Conditions
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Neutral (6.0-8.0)
Good Drainage
Occasionally Dry
Coastal
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
3a
3b
9a
9b
Loam (Silt)
Sand
Shallow Rocky
Fruit
Landscape
Cutting Garden
Butterfly Garden
Pollinator Garden
Native Garden
Mass Planting
Drought
Deer
Dry Soil
Woodland
Meadow
Naturalized Area
Butterflies
Pollinators
Songbirds
Specialized Bees

Helianthus divaricatus Attributes

Helianthus divaricatus: Country Or Region Of Origin

Eastern and central North America

Helianthus divaricatus: Distribution

AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KY , LA , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OH , OK , PA , RI , SC , TN , VA , VT , WI , WV

Helianthus divaricatus: Wildlife Value

This is a larval host plant that supports Silvery Checkerspot (Chlosyne nycteis). The Silvery Checkerspot has at least 1-2 broods in the north from June-July in the deep south and Texas, they have as many as 3-4 broods from May through September. The flowers are attractive to butterflies and other pollinators. Its seeds are favored by songbirds, ruffed grouse, quail, mourning doves, and small mammals. Leave standing dead flowers into the winter as natural bird feeders. Members of the genus Helianthus support the following specialized bees: Andrena (Callandrena s.l.) accepta, Andrena (Callandrena s.l.) aliciae, Andrena (Callandrena s.l.) helianthi, Melissodes (Eumelissodes) agilis, Dieunomia (Dieunomia) heteropoda, Megachile (Sayapis) pugnata, and Paranthidium (Paranthidium) jugatorium.

Helianthus divaricatus: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Helianthus divaricatus: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Helianthus divaricatus: Fire Risk Rating

extreme flammability
high flammability
low flammability
medium flammability

Helianthus divaricatus Flowers

Helianthus divaricatus: Flower Description

Flowers have bright 8-15 yellow rays and slightly darker yellow center disks. The flowers have 8-15 petals and rigid stems. Bloom in late summer.

Helianthus divaricatus: Flower Color

filter_vintage
Gold/Yellow

Helianthus divaricatus: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Helianthus divaricatus: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Helianthus divaricatus: Flower Bloom Time

Winter
Spring
Summer
Fall

Helianthus divaricatus: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Helianthus divaricatus: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Helianthus divaricatus: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Helianthus divaricatus Leaves

Helianthus divaricatus: Leaf Description

Leaves are opposite with a smooth to slightly toothed (shallow serrate) margin and hairy underside. The leaves often have no stem and are broadest at the base.

Helianthus divaricatus: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Helianthus divaricatus: Leaf Color

spa
Green

Helianthus divaricatus: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Helianthus divaricatus: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Helianthus divaricatus: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Helianthus divaricatus: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Helianthus divaricatus: Hairs Present

No
Yes

Helianthus divaricatus: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Helianthus divaricatus: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Helianthus divaricatus: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Helianthus divaricatus Stem

Helianthus divaricatus: Stem Description

The stem is rough to the touch.

Helianthus divaricatus: Stem Color

grass
Green

Helianthus divaricatus: Stem Is Aromatic

No
Yes

Helianthus divaricatus Whole Plant Traits

Helianthus divaricatus: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Helianthus divaricatus: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Helianthus divaricatus: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Helianthus divaricatus: Growth Rate

Slow
Medium
Rapid

Helianthus divaricatus: Maintenance

Low
Medium
High

Helianthus divaricatus Cultural Conditions

Helianthus divaricatus: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Helianthus divaricatus: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Helianthus divaricatus: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Helianthus divaricatus: NC Region

Coastal
Mountains
Piedmont

Helianthus divaricatus: USDA Plant Hardiness Zone

thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Helianthus divaricatus: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Helianthus divaricatus Fruit

Helianthus divaricatus: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Helianthus divaricatus: Fruit Color

grass
Black
grass
Brown/Copper

Helianthus divaricatus: Display/Harvest Time

Fall
Spring
Summer
Winter

Helianthus divaricatus Landscape

Helianthus divaricatus: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Helianthus divaricatus: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Helianthus divaricatus: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Helianthus divaricatus: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Helianthus divaricatus: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees