What a shrub rose is
Shrub rose is a catch-all name. It covers many modern roses bred for a full shape, repeat flowering and good disease resistance, plus older groups such as rugosas and hybrid musks that do not fit the other classes. Because the group is so broad, the plant tag matters more than the label. Two shrub roses can differ hugely in size, hardiness and flower form.
Many modern shrub roses were bred so that home gardeners could enjoy roses with less spraying and less precise pruning. Results vary by climate. A rose that stays clean in a dry region may still get black spot where summers are humid, so ask what does well locally.
Some familiar shrub groups
Rugosas
Rugosa roses have deeply wrinkled leaves, very prickly canes and fragrant flowers in white, pink or purple-red. They are very cold hardy and tolerate salt spray and poor sandy soil, which is why they often grow near coasts. Many produce large red hips. They usually resist leaf diseases well but can sucker and spread.
Hybrid musks
Hybrid musks are graceful, arching shrubs with clusters of soft-colored, scented flowers. They repeat well, and several cope with a little shade. They suit mild and moderate climates best.
Modern repeat-flowering shrubs
Breeders around the world have produced many shrub roses aimed at long flowering and easy care, including very hardy roses bred for cold northern regions and groundcover types that stay low and spread wide. Some are styled to look like old roses, with full, cupped flowers and a strong scent.
Using shrub roses in the garden
- Mixed borders. Shrub roses mix well with perennials and other shrubs. Give them enough space so air moves around the leaves.
- Hedges. A row of one variety makes an informal, flowering hedge. Rugosas make a dense, prickly barrier.
- Slopes and banks. Low, spreading roses can cover a sunny bank, though weeding among thorny stems is slow work.
- Wildlife. Single or semi-double flowers are easier for bees to reach, and hips feed birds through fall and winter.
Simple care
Shrub roses need the same basics as any rose: at least six hours of sun, soil that drains well and deep watering in dry spells. Feeding can be light. Many shrub roses grow well with a spring layer of compost and a modest feed or two in the growing season.
Pruning shrub roses
Most repeat-flowering shrub roses are pruned in late winter or early spring, when you see buds swelling.
- Remove dead, damaged and diseased wood first, cutting back to healthy tissue.
- Take out one or two of the oldest, thickest canes at the base to make room for younger, more productive ones.
- Shorten the remaining canes by about a third to keep the plant in shape. Many shrub roses do not need a harder cut.
- For a quick tidy on large plantings of small shrub roses, some gardeners simply shear them back by about a third. It works on many tough types, though careful cuts still give a neater result.
Leave late flowers on rugosas and other roses that set hips if you want the fall color. Once-flowering shrub roses are pruned after flowering instead.
Before you plant a rose that suckers, such as many rugosas and gallicas, think about edges. A buried barrier or a mown strip around the bed keeps runners where you want them.