Photo of Tricyrtis formosana 'Seiryu' foliage by Derek Powazek

Photo by Derek Powazek

Used with permission, all rights reserved

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Tricyrtis formosana 'Seiryu'

Also Known As

  • Tricyrtis 'Seiryu'
  • Tricyrtis hatatogisa
  • Tricyrtis Japenese x 'Hatatogisa'
  • Hatatogisa Toad Lily
  • Japanese Toad Lily
  • Seiryu Toad Lily

Plant type

perennial

size

  • H: 2'-4'
  • W: 12"-24"

planting zones

  • 4a-9b

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Tricyrtis formosana 'Seiryu' plant details

Tricyrtis formosana 'Seiryu' is a broadleaf deciduous perennial with green foliage. In fall, spring, summer and winter blue, lavender and purple flowers emerge. Attracts bees and butterflies making it an excellent addition to pollinator gardens. Grows well with sun - shade and even moisture - occasional water. Does well in average, rich and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Tricyrtis formosana 'Seiryu'

Plant type: perennial
Plant family: liliaceae
Foliage: deciduous green
Mature size: 12 IN - 24 IN - wide, 2 FT - 4 FT - tall
Flowers: blue, lavender and purple blooms in fall, spring, summer and winter

GROWING CONDITIONS for Tricyrtis formosana 'Seiryu'

USDA Zones: 4a - 9b
Sun exposure: sun - shade
Watering frequency: even moisture - occasional
Resistant to: verticillium wilt
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

Tricyrtis 'Seiryu' has light purple flowers with dark purple spots and intricate centres. Toad lilies are wonderful plants for the late summer and fall shade garden. Most grow on elegant arching stems often with lightly mottled foliage. They produce multitudes of ornate orchid-like flowers that are usually white (sometimes yellow) with various degrees of purple spotting.
These purple-spotted, dark dusty blue flowers with white centers evoke images of early night skies sprinkled with stars. The dark green foliage is also spotted, and combines with deep purple buds to give this spectacular Tricyrtis long lasting appeal. Plant with Kirengeshoma and double the intrigue of the flowers and foliage.
Formosana hybrid, amethyst flowers face upward on branching scapes, very showy and unlike pure formosana its hardy here; great for late fall color. ZONE 4

Gardening facts about Tricyrtis formosana 'Seiryu' plant

How to Grow Tricyrtis formosana 'Seiryu'

  • Sun Exposure

    • sun - shade
  • Water Needs

    • even moisture - occasional
  • Soil Needs

    • average
    • well-drained
    • rich
  • Special Situation

    • verticillium wilt resistant

Features

  • Foliage Color

    • green
  • Flower Color

    • blue
    • lavender
    • purple
  • Wildlife

    • bees
    • butterflies
  • Flower Season

    • spring
    • summer
    • fall
    • winter
  • Foliage Season

    • deciduous

Landscape groups by tags

See other plant types of Tricyrtis for your garden

aka Tricyrtis macrantha ssp. macranthopsis, Tricyrtis macrantha var. macranthopsis, Toad Lily

Plant Type

Perennial

Zones

6a-9b

Size

Height: 12"-18"

Width: 12"-18"

  • sun - shade
  • even moisture - regular
Photo of Tricyrtis macranthopsis flower, foliage by Kenpei
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aka Tricyrtis Tricyrtis hirta 'Miyazaki Hybrids', Miyazaki Toad Lily

Plant Type

Perennial

Zones

4a-9b

Size

Height: 24"

Width: 24"

  • sun - mostly shade
  • even moisture - regular
Photo of Tricyrtis hirta 'Miyazaki' close-up, flower, foliage by Little Prince of Oregon
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aka Tricyrtis hirta 'Lightning Strike', Lightning Strike Toad Lily

Plant Type

Perennial

Zones

4a-9b

Size

Height: 15"-20"

Width: 12"-24"

  • sun - mostly shade
  • even moisture - regular
Photo of Tricyrtis 'Lightning Strike' flower by Little Prince of Oregon
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aka Tricyrtis hirta 'Shimona', Sinonome Toad Lily

Plant Type

Perennial

Zones

5a-9b

Size

Height: 24"-36"

Width: 18"-24"

  • sun - mostly shade
  • even moisture - drought tolerant
Photo of Tricyrtis 'Sinonome' flower by Sylvia Sassen
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aka Autumn Glow Toad Lily

Plant Type

Perennial

Zones

6a-9b

Size

Height: 18"-24"

Width: 24"-36"

  • sun - mostly shade
  • even moisture - regular
Photo of Tricyrtis formosana 'Autumn Glow' flower, foliage by Little Prince of Oregon
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+81 more Tricyrtis
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