Boraginaceae
Western waterleaf
Hydrophyllum occidentale
Also known as Hydrophyllum watsonii, Pacific waterleaf, Hydrophyllum macrophyllum var. occidentale, Hydrophyllum occidentale
Flowering Plants · Native Plants · Woodland · Shade Plant · Native · Wildflower · Perennial · Pollinator · Pacific Northwest · Spring Bloomer · Groundcover
Western waterleaf is a shade-tolerant native perennial well suited to woodland gardens and shaded borders with moist, humus-rich soil. It produces attractive clusters of lavender to white flowers in spring and dies back in summer, making it ideal for underplanting beneath deciduous trees. Minimal care is needed once established in a suitable shaded, moist location.
Growing conditions
The details behind the basics
- Daily light
- 3 hours
- Watering
- Water until soil is evenly moist, allowing the top inch to dry slightly between waterings · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6.2–7.5
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- White
- Foliage
- Green · Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Arizona, California, Idaho, Nevada, Oregon, Utah
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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