Woodland Sunflower
Helianthus divaricatus
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Helianthus
- Species:
- Helianthus divaricatus
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 4-6 ft
- Light Requirements:
- Full Sun, Part Shade, Shade
- Drought Tolerance:
- High
- Bloom Months:
- jun, jul, aug, sep
- Bloom Colors:
- Yellow
Native Range
United States: Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Missouri, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont, Wisconsin, West Virginia, Canada: Ontario, Quebec
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
- Bee Keystone:
- ★☆☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)
Host Plant for Caterpillars
⚠️maritime borer moth (Papaipema maritima), ⚠️Papaipema necopina (Papaipema necopina), Pelochrista womonana, Tischeria helianthi, orange oakleaf (Charidryas nycteis)
Reported Fauna Sightings
Bees: American bumble bee (Bombus pensylvanicus), American bumble bee (Bombus pensylvanicus), Brown-belted bumble bee (Bombus griseocollis), Brown-belted bumble bee (Bombus griseocollis), Common eastern bumble bee (Bombus impatiens), Common eastern bumble bee (Bombus impatiens), Half-black bumble bee (Bombus vagans), Half-black bumble bee (Bombus vagans), Hunt's bumble bee (Bombus huntii), Hunt's bumble bee (Bombus huntii), Lemon cuckoo bumble bee (Bombus citrinus), Lemon cuckoo bumble bee (Bombus citrinus), Red-belted bumble bee (Bombus rufocinctus), Red-belted bumble bee (Bombus rufocinctus), 🛑Rusty-patched bumble bee (Bombus affinis), 🛑Rusty-patched bumble bee (Bombus affinis), Tri-colored bumble bee (Bombus ternarius), Tri-colored bumble bee (Bombus ternarius), Two-spotted bumble bee (Bombus bimaculatus), Two-spotted bumble bee (Bombus bimaculatus), Yellow bumble bee (Bombus fervidus), Yellow bumble bee (Bombus fervidus), Yellow-banded bumble bee (Bombus terricola), Yellow-banded bumble bee (Bombus terricola)
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- Prefers open woodlands and dry, rocky areas
Germination Information
Pre-treatment: Seeds are given 3-4 weeks cool moist stratification in seed cooler.
Establishment: This seed has had poor germination so trays were heavily seeded. No gram weight was recorded.
Source: npn.rngr.net