Helianthus divaricatus
Woodland sunflower
Hélianthe à feuilles étalées
Obsolete Names
- divergent sunflower
- hélianthe divariqué
No seeds available for this plant.
We are not accepting seeds for this plant at the moment.
Bloom colour: Yellow
Bloom period: July - September
Max Height: 4.0 feet
Max Width: 3.0 feet (spreads by rhizome)
Light condition:
Less than 2 or 3 hours of direct sun a day
Soil conditions:
Tolerates dry soil condition
Tolerates medium soil condition
Less than 2 or 3 hours of direct sun a day
Tolerates dry soil condition
Tolerates medium soil condition
Lifespan : Perennial
Gardener Experience:
Does not spread uncontrollably
Easy to germinate
Does not spread uncontrollably
Easy to germinate
Landscape uses:
Suitable for rock gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for woodland gardens
Tolerates light foot traffic
Suitable for rock gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for woodland gardens
Tolerates light foot traffic
Ecological Benefits:
Supports pollinators
Bee host
Keystone species
Supports pollinators
Bee host
Keystone species
Tolerates:
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates juglone conditions
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates juglone conditions
Plant Distribution
Native to Ottawa region: Yes
Thrives in Ecozones
- Ecozone-Mixed Wood Plain
- Ecozone-prairies
- Ecozone-Montane Cordillera
- Ecozone-Boreal Shield
- Ecozone-Boreal_Plains
- Ecozone-Prairies
Butterflies Supported by Helianthus divaricatus
- Phragmatobia fuliginosa (Ruby Tiger)
Bees Supported by Helianthus divaricatus
- Andrena aliciae
- Andrena chromotricha
- Andrena helianthi
- Complexe Colletes americanus
- Dianthidium simile
- Megachile inimica
- Megachile pugnata
- Melissodes agilis
- Melissodes denticulatus
- Melissodes illatus
- Melissodes trinodis
- Perdita pallidipennis
Complementary Plants Plants that grow in similar conditions, that bloom at the same time.
- No complementary plants found.
Sowing Information
- Sowing depth: Sow just below surface
- Sow before March
- Stratification duration: 30 days
- Self-seeding
Harvesting Information
- Harvesting indicator: Seeds easily fall off when you gently pull them off
- Harvesting mean: Shake seed head in paper bag
- Seed Viability Test: No test needed before donating
- Packaging Measure: 1 rounded 1/4 teaspoon
- Seed Storage: Air Dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
- On Cultivar: No, you can donate without knowing the source as there are only straight species