Campanulaceae
Clermontia arborescens subsp. waikoluensis
Clermontia arborescens subsp. waikoluensis
Also known as Clermontia waikoluensis
Tropical Plants · Flowering Plants · Native Plants · Trees & Shrubs · Clermontia · Hawaiian Endemic · Rare · Tropical Shrub · Campanulaceae · Endangered · Native Hawaii · Birds · Specialist · Conservation
This rare Hawaiian endemic shrub from the bellflower family requires a very specific tropical environment with high humidity, consistently moist soil, and dappled light — closely mimicking its native wet forest habitat on the Big Island. It is critically rare and not available through standard retail channels, making it a plant for specialist botanical collections only. If you are lucky enough to grow one, protect it from any drought stress and maintain excellent air circulation to prevent funga
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water deeply to keep soil consistently moist but never waterlogged; ensure excellent drainage · Every 5-7 days
- Maintenance
- High
- Soil
- loam
- Soil pH
- 6–8
- Temperature
- -10°F to 85°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spread
- 2 ft
- Spacing
- 60 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Hawaii
- Attracts
- Birds, Hummingbirds
Sources: trefle
More Clermontia
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Buy this plant
No nurseries currently list it
No nursery lists Clermontia arborescens subsp. waikoluensis right now.