Flaxleaf Whitetop Aster
Ionactis linariifolius
- Native to:
- Canada, United States
Barton, William P. C.




Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Ionactis
- Species:
- Ionactis linariifolius
- USDA Symbol:
- IOLI2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 50 cm
- Light Requirements:
- Full Sun,Part Shade,Shade
- Drought Tolerance:
- High
- Bloom Months:
- aug,sep,oct
- Bloom Colors:
- lavender, violet, blue
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, small pollinators
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from basal crown following fire. Found in fire-maintained habitats such as pine barrens and dry prairies.
Soil Requirements
- Soil Type:
- sandy, acidic, nutrient-poor soil
- pH:
- 4.5 - 6.5 (acidic to slightly acidic)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- Prefers open, sunny locations; common in rocky or sandy areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–28 days
- Notes:
- Seeds benefit from cold stratification and may germinate erratically. Surface sow as seeds require light for germination.
The above propagation data sourced from Claude AI