Tricyrtis formosana 'Sinonome' is an exotic looking perennial known for its orchid like star shaped flowers that appear in late summer and fall. The blooms are pale lavender with dark purple spots and they emerge along gently arching stems above glossy green foliage. This toad lily thrives in shady moist woodland gardens and adds interest when many other shade plants have finished blooming. Its upright habit and clump forming nature make it ideal for naturalizing in filtered light environments.
Height & Spread: 18 - 24 in x 18 - 24 in
Bloom Time: Late summer to fall
Light Requirements: Part shade to full shade
Soil Preference: Rich, moist, well drained soil with organic matter
Watering Needs: Moderate to moist; consistent moisture improves flowering
Deer Resistance: Deer tend to avoid the fuzzy, slightly hairy foliage
Native Status
This cultivar is derived from species native to Taiwan and Japan. While not native to North America, it performs reliably in shady temperate gardens.
WILDLIFE & INSECTS
Bees
- Attracts late season pollinators such as honeybees and bumblebees looking for nectar when few other shade plants are in bloom.
Butterflies
- Visited by fall flying butterflies including Question Mark and Red Admiral seeking shelter and nectar in dappled shade areas.
Beneficial Insects
- Provides nectar to syrphid flies and parasitic wasps which help control pests in nearby plantings.
Spacing & Landscape Use
Spacing Recommendations:
- Space 18 - 24 in apart to allow for mature clump development and easy access for pollinators.
Landscape Placement:
- Excellent for woodland borders, shaded foundations, or underplanting deciduous shrubs where late color is needed. Works well in naturalized groupings or tucked among ferns and hostas for layered effect.
Companion Plants
- Brunnera macrophylla 'Jack Frost' - Silvery veined leaves and spring blue flowers create visual contrast with the spotted blooms of Tricyrtis.
- Polygonatum odoratum 'Variegatum' - Arched variegated stems mirror the growth habit of Tricyrtis and brighten shaded areas.
- Heuchera villosa 'Autumn Bride' - Light green fuzzy foliage and late season white blooms complement the form and bloom time of toad lilies.
- Dryopteris erythrosora (Autumn Fern) - Coppery new fronds and textural foliage highlight the delicate flowers of Tricyrtis.
- Hosta 'First Frost' - Blue green leaves edged in creamy white echo the pale flower tones and provide sturdy contrast.