A Long Season of Bloom in a Shade Garden
Article and photos by Anna Anderson
The aim of many a perennial garden is to have something always in bloom, and the possibilities in a sunny border are endless, from the first snowdrops of spring to the last hardy aster in the fall. But what if the garden is in the shade?
Many perennial plants thrive with as little as one or two hours of sun a day, preferably in the morning. And it’s entirely possible to have a long period of color from such a garden, whether from blooms or foliage or both. It may not span three seasons, but it’s a continuous unfolding of beauty.
These are the plants that came back in my shade garden and the order they appeared.
Lenten rose (Helleborus x hybridus), which is not a rose but a member of the buttercup family, is the earliest to bloom. As its common name suggests, its flowers of white, pink, purple, and green appear around the Christian season of Lent, in late winter.

Lenten rose,
Helleborus x hybridus, cannot tolerate
high temperatures and is toxic to humans and pets.
Lungwort (Pulmonarea spp.), one of my favorites with its spotted leaves and pink, purple, white, and blue flowers, also blooms in late winter, and its foliage lights up a shady spot when the flowers have faded..
Next up are rhododendrons (Rhododendron spp.), a flowering shrub that is also early to the flower show, from late winter into early spring. Its clusters of bell-shaped blooms come in many colors, including white, pink, red, purple, and yellow. The Rhododendron genus includes azaleas, which also comes in a broad range of colors, sizes, and sun tolerance. I have a so-called Sun Azalea in orange. Neither rhododendrons nor azaleas are common in northern Nevada gardens, not just because of our abundant sun but also because of our alkaline and sometimes poorly drained soil. In the right microclimate, though, they can be grown successfully here.
Bleeding heart (Lamprocapnos spectabilis) is another favorite of mine. These plants, grown from tubers, disappear entirely over winter and are slow to emerge in the spring. But once above ground, they are quick to show their beautiful heart-shaped flowers, held along arching stems. These traditionally have pink, red, or purple outer petals with white in the middle.
Another shade-loving spring bloomer is coral bells (Heuchera spp.). I have one with green leaves that offers long-lasting coral flowers, and one with darker leaves that produces delicate white flowers. Cross-species Heuchera hybrids are increasingly available, with foliage in a wide range of red, maroon, light yellow-green and pale orange hues, which can add colorful accents to a shade garden after their flowering season.

Coral bells, Heuchera spp., are rich in nectar, the flowers
attract hummingbirds and butterflies. They also make nice cut flowers.
Columbines (Aquilegia spp.) are also spring-flowering, and available in many colors as well as bi-colored versions. While gardeners in cooler climates can grow these in full sun, in our climate they will need at least partial shade as they do not tolerate excessive heat.

Columbines, Aquilegia spp., the blooms
are said to resemble a jester’s hat. They are toxic to humans.
And last, but surely not least, hostas (Hosta spp.) are a long-time favorite of shade gardeners, available in sizes from miniature to giant, and in a huge variety of leaf shape texture, and color, including many striking bi-colors. In my garden I have a little one, ‘Blue Mouse Ears’, which will top out at 12” and a giant, ‘Guacamole’, which can get to 30” or more. These are not spring bloomers. Their flowers, usually in shades of lavender, come in the summer to early fall. Some gardeners remove the blossoms, thinking they detract from the foliage. If you leave them, the hummingbirds will thank you.

Hosta, Hosta spp., do not plant in clay soil because it holds too much
moisture. Deeper infrequent watering is better than frequent shallow applications.
This year, I'll be adding lily of the valley (Convallaria majalis), a ground cover grown from rhizomes. I’ll look forward to its tiny, fragrant, bell-shaped flowers in the spring.
More information:
Lenten rose likes to be under trees in fertile, well-drained, moist soil. These plants are hardy in zones 6-8 and can grow to 12-18 inches tall.
My first lungwort was called ‘Shrimps on a Barbie.’ The Farmer’s Almanac online (states, “It asks little and gives plenty.” It grows in zones 3-8, is deer- and rabbit- resistant and attracts butterflies.
Rhododendron is a woody shrub, grown in zones 4-8. It likes well-drained, acidic soil and is best planted on the north or east side of your home. It needs constant moisture and mulching to protect its shallow roots. Prune after the spring bloom and feed with an acid-based fertilizer.
Azaleas grow in zones 6-9. Like other rhododendrons, they like pH levels of 4.5-6, and they need constant moisture. Prune after the spring blooming and feed with an acid-based fertilizer. I don’t have a picture of my plant in full bloom because I have a bobcat who likes to go through my yard and he injured my plant.
Bleeding heart grows in zones 3-9 and appreciates mulch. It will go dormant by summer; and its foliage is slow to emerge in the spring. Be patient!
Coral bells prefer morning sun to afternoon shade. They like moist, well-drained soil, and grow in zones 3-7. An interesting note is that the darker-leaved ones handle more sun than varieties with lighter leaf colors.
Columbines need to be mulched and thrive in zones 3-9. They are prolific and self-seeding, which allows them to continue to grow in your garden. A bonus: Hummingbirds love them.
Hostas are hardy, low-maintenance, and grow in zones 3-9. The blue ones need more shade than other colors, and the golden ones need fewer hours of morning sun. Fertilize in the spring. Deer, snails, and slugs can be a problem.