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Asteraceae
Balsamorhiza macrophylla
Balsamorhiza macrophylla
Also known as Balsamorhiza hookeri var. idahoensis, Balsamorhiza macrophylla var. idahoensis
Flowering Plants · Native Plants · Balsamroot · Balsamorhiza · Native Perennial · Yellow Flowers · Intermountain West · Asteraceae · Wildflower · Rocky Soil · Large Leaves · Pollinator
Largeleaf balsamroot (Balsamorhiza macrophylla) is a striking native perennial from the Intermountain West, producing large, heart-shaped leaves and bright yellow daisy-like flowers in spring. Plant in well-drained, rocky or sandy soil and avoid overwatering once established. It is slow to settle in after transplanting but very long-lived once rooted.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water deeply but infrequently, ensuring soil is moist to depth then allowed to dry between waterings · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6.3–8.6
- Temperature
- -40°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 3 ft
- Spacing
- 24 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yellow
- Foliage
- Green · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Idaho, Montana, Oregon, Utah, Wyoming
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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