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Alismataceae
Damasonium californicum
Damasonium californicum
Also known as Machaerocarpus californicus, Damasonium californicum var. biddlei, Alisma californicum
Flowering Plants · Native Plants · Aquatic · Wetland · Vernal Pool · Native · California · Bog Garden · Rare · Marginal Plant · Perennial · Water Plant
California starwort (Damasonium californicum) is a rare aquatic or semi-aquatic perennial native to vernal pools and wet meadows of the western United States. It requires consistently waterlogged or shallow-water conditions and is best suited for pond margins, bog gardens, or native wetland restorations. This specialist plant is not suitable for typical garden beds and demands very specific moisture management to thrive.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Maintain saturated or shallow-standing water conditions, especially during the growing season · Keep consistently moist to wet; do not allow to dry out
- Maintenance
- High
- Soil
- loam
- Soil pH
- 5.8–7.8
- 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
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- White
- Foliage
- Green · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- California, Idaho, Nevada, Oregon
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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