Rosa spp. 'Shrub & Species Group'
shrub & species roses
Northern Hemisphere temperate regions (species); complex hybrid origin (modern shrub roses)Overview
Shrub and species roses encompass a broad, diverse class of Rosa ranging from 2-8 feet (0.6-2.4 m) tall, including wild species, old garden roses, and modern shrub hybrids that do not fit neatly into other classes. Species roses are the wild, naturally occurring forms found across the Northern Hemisphere, typically producing single (5-petaled) flowers once per season in spring or early summer, followed by colorful hips in fall. Modern shrub roses are bred for landscape performance, combining disease resistance, repeat bloom, low maintenance, and tough constitution. The class includes English roses (David Austin types), rugosa hybrids, Buck roses, Parkland and Explorer series (Canadian hardy), and landscape roses (Knock Out®, Drift®, Flower Carpet®). Flowers range from single to fully double, in all rose colors. Many species and old garden roses are intensely fragrant. Leaves are alternate, pinnately compound, with 5-9 serrate leaflets; rugosa types have distinctively wrinkled (rugose), dark green leaves. Growth habits vary from compact mounding to large, arching shrubs. Generally the most disease-resistant and lowest-maintenance class of roses, particularly the modern landscape types. Rose hips on species and single-flowered types provide fall and winter ornamental interest and wildlife food.
Native Range
Species roses are native across the temperate Northern Hemisphere. Pacific Northwest natives include Rosa nutkana (Nootka rose) and Rosa pisocarpa (cluster rose). Other important species include Rosa rugosa (northeast Asia), Rosa glauca (Europe), Rosa moyesii (China), and Rosa canina (Europe). Modern shrub roses are of complex hybrid origin.Suggested Uses
Planted in mixed borders, hedges, mass plantings, wildlife gardens, and naturalized areas, spaced 3-6 feet (0.9-1.8 m) apart depending on type. Species roses are valued for native plant gardens, wildlife habitat (hips feed birds), and low-maintenance landscapes. Rugosa types are excellent for coastal plantings, hedging, and erosion control. Modern landscape roses provide continuous color with minimal care. David Austin English roses combine old-garden-rose flower forms with modern repeat bloom. Notable cultivars include Rosa rugosa 'Hansa' (magenta, fragrant, hardy), Knock Out® (red, disease-immune), 'Graham Thomas' (yellow, David Austin), and Rosa glauca (pink flowers, blue-gray foliage, red hips).How to Identify
Appearance
Size & Dimensions
Height2' - 8'
Width/Spread2' - 8'
Reaches mature size in approximately 4 years
Bloom Information
Species roses and once-blooming old garden roses flower in May to June for 3-5 weeks. Modern repeat-blooming shrub roses flower from late May through October. Rose hips develop on species and single-flowered types after flowering, ripening in September to October and persisting through winter. Deadheading repeat-blooming types promotes rebloom; do not deadhead species types if hips are desired.Detailed Descriptions
Flower Description
Varies: white, pink, red, yellow, orange, lavenderFoliage Description
Medium to dark green (rugose on rugosa types)Growing Conditions
Sun Requirements
Requires 4-12 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Water regularly during the first two growing seasons. Many shrub and species roses are moderately to highly drought-tolerant once established — notably rugosa types and Pacific Northwest natives. Plant in full sun with at least 6 hours of direct light for best flowering; some species tolerate part shade. Tolerates a wider range of soil conditions than hybrid teas; rugosa types tolerate poor, sandy, and saline soils. Mulch 2-3 inches (5-8 cm). Modern landscape roses (Knock Out®, Drift®) require minimal disease management. Species and rugosa types are essentially disease-free. Fertilize lightly; over-fertilization promotes weak, disease-susceptible growth.Pruning
Once-blooming species and old garden roses: prune immediately after flowering in June to July by removing oldest canes at the base and shortening laterals. Do not prune in late winter — this removes the wood on which flowers form. Repeat-blooming modern shrub roses: prune in late winter (February through March), removing dead and oldest canes, and reducing remaining canes by one-third. Landscape roses (Knock Out® types) can be sheared with hedge shears in late winter to 12-18 inches (30-46 cm).Pruning Schedule
J
F
M
A
M
J
J
A
S
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late springsummer
Maintenance Level
lowContainer Growing
✓ Suitable for container growing
Minimum container size: 10 gallons