Description & Overview

Trevi Fountain Lungwort is an excellent low-maintenance perennial for use as a border or groundcover. Its intense blue flowers in early spring add a pop of color when few other perennials are blooming. The low foliage of Trevi Fountain shines as a border and its clumping habit won’t detract from other perennials that bloom later. With great disease and pest resistance, this plant is a great alternative or complement to Hostas, and is a must in the partial- to full-shade garden.

This plant is no longer in production. The product info remains for informational purposes.

Core Characteristics

Category: Perennial

Wisconsin Native: No

USDA Hardiness Zone: to zone 4

Mature Height: 12 inches

Mature Spread: 24 inches

Growth Rate: Perennial

Growth Form: Clumping

Light Requirements: Partial Shade to Full Shade

Site Requirements: Tolerates many soil textures, but avoid dry sites

Flower: Cobal-blue, forked cyme

Bloom Period: April-May

Foliage: Dark green with silver spots

Fall Color: Insignificant

Urban Approved: No

Fruit Notes: Insignificant, 4 small nutlets per flower

Suggested Uses

The low habit and attractive foliage of Trevi Fountain Lungwort is great for massing and borders. Trevi Fountain is more tolerant of sun, heat, and humidity than other Pulmonaria cultivars and is more versatile in transitional areas of your garden where sunlight is less predictable. Although the plant does best in moist, well-drained soil, we’ve observed them doing well on a shaded slope with low moisture and several hours of hot afternoon sun.

Trevi Fountain Lungwort is an excellent low-maintenance perennial for use as a border or groundcover. Its intense blue flowers in early spring add a p…

Wildlife Value

The cup-like flowers of Trevi Fountain Lungwort are great for attracting hummingbirds and pollinators. However, their early bloom period means that there aren’t as many insects around in general, so don’t expect to see butterflies flocking to your yard.

Deer and Rabbits seem to avoid Trevi Fountain Lungwort for browsing. Slugs and snails may eat the foliage occasionally.

Maintenance Tips

After flowering, the spent stalks can be clipped out leaving a tidy mound of attractive foliage. Removing the spent flowers can cause a second or even third flush of blooms if conditions are right. Spring cleanup is simply removing discolored foliage.

The soils around the plant should never be allowed to completely dry out, but a healthy layer of mulch 2-3″ thick will do wonders for keeping the plant happy and healthy. Once established, the plant requires little to no maintenance to stay attractive.

After 3-5 years in the landscape, the plant can be divided and replanted. This is best in spring after flowering or fall. Make sure to dig your hole wide and capture as many roots as possible.

Trevi Fountain Lungwort is an excellent low-maintenance perennial for use as a border or groundcover. Its intense blue flowers in early spring add a p…

Pests/Problems

As long as the soils around Trevi Fountain Lungwort aren’t allowed to completely dry out, this plant is relatively disease free. Pulmonarias can develop Powdery Mildew when drought stressed, however, Trevi Fountain Lungwort is more resistant to the fungus than other cultivars.

The foliage can scorch during periods of excessive heat. Even though Trevi Fountain is more tolerant of heat and sun, keep an eye on it when we have exceptionally high temperatures. Clip out damaged foliage when noticed with a clean pruner.

Slugs and snails can be problematic and damage the foliage, but you’ll notice issues with your hostas before you see anything on your lungwort. If it is an issue, you can use a slug and snail repellent/pesticide to protect the foliage.

Leaf Lore

Lungwort gets its common and scientific name from its foliage resembling a diseased lung. The genus Pulmonaria contains plants native to Europe and Asia, with no species native to the Americas. It is a member of the Boraginaceae (Forget-Me-Not) family, along with Brunnera (Bugloss) and Mertensia (Bluebells). Lungwort is also called Bethlehem Sage.

Trevi Fountain Lungwort is a hybrid selection resulting from a cross between Pulmonaria longifolia ‘Bertram Anderson’ (seed parent) and Pulmonaria vallarsae ‘Margery Fish’ (pollen parent). It gets its slender leaves from ‘Bertram Anderson’ and its improved mildew resistance and vigor from ‘Margery Fish’. The flowers of Trevi Fountain are also held higher and demonstrate longer-lasting color when compared to the parent plants.

Companion Plants

Trevi Fountain Lungwort is a great shade plant with plenty of foliage interest throughout the growing season. Coralbells, Hostas, and Geraniums all provide contrasting foliage textures and colors. You can also use Astilbes and Turtleheads to provide flowers through the seasons. For a spring pairing, use Shooting Star for its delicate white flowers to complement the cobalt-blue blooms of Trevi Fountain Lungwort.

Trevi Fountain Lungwort is an excellent low-maintenance perennial for use as a border or groundcover. Its intense blue flowers in early spring add a p…
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Written by Johnson's Nursery