Barrenwort Care Must-Knows
Barrenwort grows in soil conditions ranging from dry in shade to wet in the wild. When planting this perennial, make sure its woody rhizomatous roots (aka rhizomes) sit just below the soil surface. If planted too deep, the plants may rot or flower late. To divide barrenwort, dig up the plants before they flower in spring. Tease apart the rhizomes, or cut them apart with a sterile sharp knife. Then share the rhizomes with friends and neighbors, or plant them in new areas of your yard. Barrenwort can be divided in fall the same way, but remove about one-third of the foliage to reduce the stress of supporting top growth, while leaving enough foliage to fuel the growth of new roots. Although barrenwort tolerates full shade, planting it in part shade results in the brightest colors and greatest number of blossoms. Try to avoid intense late afternoon sun, which is likely to burn the foliage. This is particularly important with evergreen varieties, which are less hardy than deciduous ones.
New Innovations
A relative newcomer to the Western world, barrenwort’s latest varieties feature taller flower stalks that emphasize the blooms. Other hybrids feature intriguingly mottled foliage. And breeders are developing bicolor blooms for even more interest.
More Varieties of Barrenwort
‘Sulphureum’ Bicolor Barrenwort
Epimedium x versicolor ‘Sulphureum’ has whitish blooms with a yellow center. Its evergreen foliage grows 8-12 inches tall. Zones 5-9.
Red Barrenwort
Epimedium rubrum foliage is red along the edges and has rosy undertones. Its color intensifies where it receives ample sun before trees leaf out in spring. Zones 4-9.
‘Rose Queen’ Longspur Barrenwort
Epimedium grandiflorum ‘Rose Queen’ has the largest flowers of the group at 1¾ inches wide. It grows 1 foot tall. Zones 5-8.
Barrenwort Companion Plants
Hellebore
Hellebores are so easy and so pretty, they have a place in nearly every landscape. Their exquisite bowl- or saucer-shaped flowers in white (often speckled), pinks, yellows, or maroon remain on the plant for several months, even after the petals have fallen. Deer-resistant and mostly evergreen, hellebores’ divided leaves rise on sturdy stems and may be serrated (like a knife) along the edges. They do best in shade where soil remains moist; some prefer acid or alkaline conditions, depending on variety.
Columbine
Perfect for cottage and woodland gardens, old-fashioned columbines are available in almost all colors of the rainbow. Intricate little flowers, they are most commonly a combination of red, peach, and yellow but also blues, whites, pure yellows, and pinks; they look almost like folded paper lanterns. Columbine thrives in sun or partial shade in moist, well-drained soil. Plants tend to be short-lived but self-seed readily, often creating natural hybrids with other nearby columbines. If you want to prevent self-seeding, deadhead plants after bloom.
Perennial Geranium
One of the longest bloomers in the garden, hardy perennial geranium bears little flowers for months at a time. It produces jewel-tone, saucer-shaped flowers, and mounds of handsome, lobed foliage. It needs full sun, but otherwise, it is a tough and reliable plant, thriving in a wide assortment of soils. Many of the best are hybrids. Perennial geraniums may form large colonies.
