Northwest Blooms · Perennials
Gentiana asclepiadea
Willow Gentian

- Family
- Gentianaceae
- Height
- 2-3 feet tall
- Width
- 1-2 feet wide
- Flower color
- Blue to purple, bell-shaped flowers
- Foliage color
- Deep green, lance-shaped leaves
- Bloom time
- Late summer to early fall
- Light
- Partial shade to full shade
- Water
- Medium
- Maintenance
- Low; may require occasional pruning
- Growing zone
- USDA Zones 5-7
- Wildlife
- Attracts bees and butterflies
About this plant
Gentiana asclepiadea, known as the willow gentian, brings an enchanting touch to the garden with its graceful, arching stems and deep blue to purple, trumpet-shaped flowers. Blooming from late summer into early fall, these blossoms appear in clusters along the stems, providing vibrant color when many other plants are winding down. The intense blue hue is a refreshing sight, adding richness to mixed borders and shaded areas.
This gentian is native to Europe, particularly in mountainous regions, where it thrives in woodland and meadow habitats. The slender, willow-like leaves create an elegant backdrop to the striking flowers, giving the plant a refined, flowing appearance. Ideal for shaded or partially shaded spots, Gentiana asclepiadea pairs beautifully with ferns, hostas, and other shade-loving perennials, bringing late-season interest and a natural woodland aesthetic to the garden.
Works well in
Borders · Shade Gardens · Woodland Gardens · Pollinator Gardens · Cut Flower Gardens
Companion plants
Heucheras · Siberian bugloss · Sweet woodruff · Foamflowers · Epimediums · Hostas
Design tip
Late flowers extend the season, so set it behind or beside plants that finish in midsummer. Keep it out of hot afternoon sun and layer it with woodland companions for a full, settled look.
Where to see it
This plant can be seen in the perennial border at the Bellevue Botanical Garden.
