Largeflower Yellow False Foxglove
Aureolaria grandiflora
- Native to:
- Canada, United States
Joshua Mayer (www.flickr.com) from Madison, WI, USA
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Orobanchaceae
- Genus:
- Aureolaria
- Species:
- Aureolaria grandiflora
- USDA Symbol:
- AUGR
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 120 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
⚠️Orange Sallow (Rhodoecia aurantiago), Baltimore checkerspot (Euphydryas phaeton), Common Buckeye (Junonia coenia)
Reported Fauna Sightings
Bees: American bumble bee (Bombus pensylvanicus)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from root crown after fire. Benefits from periodic fire in oak woodland habitats that maintain open understory conditions.
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:
- often found in open woods and rocky slopes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination. Hemiparasitic on oak roots, so germination and establishment improved near host plants.
The above propagation data sourced from Claude AI
Pre-treatment: Stratification: mixed with damp sand and stored at 38F for 12 weeks in a sealed plastic bag
Source: npn.rngr.net