Lamiaceae
Phyllostegia warshaueri
Phyllostegia warshaueri
Also known as Phyllostegia ambigua var. longipes
Zones 5–9Sun Partial SunWater ModerateCare High
Tropical Plants · Native Plants · Hawaiian · Endemic · Mint · Lamiaceae · Rare · Cloud Forest · Humidity · Native · Conservation
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Currently out of stock everywhereStock updated 9/6/2026
This rare Hawaiian endemic mint requires consistently moist, well-draining soil and protection from direct sunlight. It thrives in humid conditions similar to its native cloud forest habitat and needs regular misting to maintain adequate humidity.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Keep soil consistently moist but not waterlogged · Every 5-7 days
- Maintenance
- High
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -10°F to 90°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
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Form & growth
Mature size and habit
- Mature height
- 10 ft – 20 ft
- Spread
- 10 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Hawaii
- Attracts
- Bees
Sources: trefle
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