trefle.io · Taken Jun 18, 2022 by Madelyn Passmore (cc-by-sa)
Caprifoliaceae
Western valerian
Valeriana occidentalis
Also known as Sitka valerian, Mountain valerian, Pacific valerian
Flowering Plants · Native Plants · Valerian · Native · Wildflower · Woodland · Mountain Plant · Pollinator · Perennial · Medicinal · Rocky Mountain · Shade Tolerant
Western valerian is a hardy native perennial that thrives in moist, well-drained mountain soils with partial shade, making it an excellent choice for woodland or rock gardens. Its clusters of small white to pale pink flowers attract pollinators throughout summer. Once established it requires minimal maintenance, though consistent moisture is important, especially during dry spells.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water until soil is thoroughly moist, then allow the top inch to dry before rewatering · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7.8
- 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 · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, South Dakota, Utah, Washington, Wyoming
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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