Flowers

How to Plant, Grow, and Care For Toad Lilies

When the rest of the garden is starting to go dormant, jewel-like toad lilies are just starting to shine. Learn how to grow these exotic, yet deceptively easy to care for, fall-blooming perennials with biologist and garden enthusiast Lindsay Miller.

The....

origins of the common name “toad lily” is under much speculation. It is likely a reference to this plant’s spotty petals, which resemble the patterns found on toads. Or perhaps it pertains to the three warty nectaries at the base of the flower (nectaries are special tissues that produce nectar). Toad lilies also appreciate plenty of moisture, much like toads and frogs, so maybe that’s it.

In any case, the beauty of this plant far surpasses its rather unglamorous name.

Toad lilies are little hidden jewels in the garden. Unassuming clumps of gently arching stems bearing simple green foliage fill the garden from spring through fall. Come autumn, as all the other woodland perennials seem to be closing up shop for the season, ornately speckled, orchid-like flowers burst open. Don’t be fooled by the delicate, exotic blooms of this plant. They’re hardy to USDA zones 4 or 5, depending on the variety, and require little coddling or maintenance.

These flowers are relatively new to the North American gardening scene, having only been introduced in the 1990s. Their hardiness, exceptionally beautiful flowers, and ability to grow happily in mostly shade should elevate this plant’s status to “must have.” Read on and learn how to grow and care for this remarkable little plant.

Overview
What Is It?
Toad lilies are a group of herbaceous perennials with exotic, jewel-like flowers that open late in the season. There are 16-20 species of Tricyrtis spp., however, just two are readily available for home gardeners.

Even before the flowers appear in the fall, the foliage of this perennial provides lovely cover in the shade garden. Stems are upright or elegantly arching. Narrow leaves that resemble those of a small hosta or Solomon’s seal emerge on alternating sides of the stem. Leaves are usually solid medium green. However, some varieties like ‘Variegata’ or ‘Samurai’ have yellow or cream-colored striping.

The star-shaped flowers resemble orchids, with six tepals (the botanical term for when a flower has similar inner petals and outer sepals) that unfurl in late summer or early fall. Most often, the tepals are white with purple or dark burgundy splotches, although there is some variation in the coloring depending on the species or cultivar.

Toad lilies continue to flower vigorously until the first hard frost, a time when not much else is in bloom. As a fall-blooming perennial, toad lilies are a valuable source of food for pollinators. Bees and hummingbirds easily access the nectar found deep inside the tubular toad lily flowers.

Native Area
These exotic flowers are native to Asia, from the Philippines north to China, Taiwan, and Japan, and east towards the Himalayas. They primarily grow along shady streambanks, ravines, and woodland edges, where the tree canopy gives way to thickets and open grass areas.

Planting
Toad lilies thrive in shady beds and borders, where they receive a bit of protection from direct, all-day sun. The fine details and intricate patterns of the flowers are incredibly unique and best observed up close, so place toad lilies along walkways or towards the front of a border, where they can be easily admired.

Toad lilies pair beautifully with other shade-loving perennials like ferns, lungwort, coralbells, astilbe, and Siberian bugloss. Most of these plants bloom in the spring through early summer, leaving a gap later in the season that this fall-flowering species fills beautifully. A backdrop of shade-tolerant evergreens, like rhododendrons or a yew, provides a lovely contrast to the pale blooms of the toad lily.

You can grow it in containers, provided the pot has plenty of drainage. Note that toad lilies spread slowly via creeping rhizomes and will need regular repotting if it outgrows its container.