Diamant® Bedding rose KOReb – pharmaROSA® NEONATAL rooted cutting
Reliability in production, vigour on the bench and compact, upright habit make Diamant® KOReb a practical floribunda choice for nursery networks aiming at standard container lines and uniform 2–3 L bush-trained stock. Its resistance to key foliar diseases supports low-intervention crop management and dependable quality for retail and reseller programmes, while robust winter performance aligns well with northern UK and similar climates where cold and exposure are production factors. The rich, warm orange colour, large, very double cluster-flowered heads and mild, sweet fragrance position the finished product as a reliable bedding and cut-flower option for thematic rose gardens and show collections. Own-root propagation offers a renewable base that moves naturally from strong root establishment in year one through increasing shoot build-up in year two to full ornamental expression by year three, providing a stable, long-term portfolio component for professional rose producers.
Usage options
Finished-product ideas
- Orange Bedding Floribunda 2–3 L – compact, upright bush-trained plants in standard 2–3 L containers, built on disease-resistant, own-root stock for reliable garden performance – retail and reseller bedding ranges
- Dual-Purpose Bed & Cut Rose – 2–3 L floribundas offering large, very double clusters suitable for both bedding and home cutting, produced from low-intervention, hardy own-root lines – garden centre and lifestyle-focused retail
- Thematic Orange Collection Pot – colour-consistent 2–3 L plants grouped in branded orange floribunda concepts, leveraging stable colour retention and tidy, compact habit – curated colour programmes for chain retailers
- Show-Garden Feature Container 40–50 L – bulked-up own-root plants transplanted to 40–50 litre containers for high-impact orange displays in thematic rose gardens, benefiting from long-term structural reliability – show gardens and public-realm projects
- Propagation Stock and Maintenance Line – dedicated blocks of own-root plants grown in standard containers then planted out as long-lived mother plants, capitalising on regenerative vigour and hardiness – specialist propagators and collection holders
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Floribunda bed rose registered as KOReb, marketed as Diamant® Bedding rose KOReb, with approved exhibition name Diamant; belongs to the Bedding rose collection and floribunda exhibition category. |
| Origin and breeding |
Bred by Reimer Kordes at W. Kordes’ Söhne in Germany from ‘Korona’ × ‘Spartan’; introduced and registered in 1962, with initial distribution through Jackson & Perkins Co. in the USA. |
| Growth and structural characteristics |
Upright, compact bush habit reaching about 80–105 cm in height and 60–85 cm spread; moderately dense mid‑green, slightly glossy foliage and moderate thorniness support a robust yet manageable plant form. |
| Flower morphology |
Very double, cup-shaped blooms with over 40 petals form in clusters on a floribunda framework; large flower size around 2.75–3.95 inches and remontant flowering delivering an abundant second flush across the season. |
| Colour data and phenology |
Bright orange with a subtle salmon-red tint, opening from deep vermilion buds; colour fades through warm orange to peach‑orange with slight cream at petal tips, maintaining good retention and a warm, uniform orange at full bloom. |
| Fragrance and aroma |
Mild, restrained fragrance with a soft, sweet character; primarily ornamental in effect rather than strongly perfumed, complementing its role as a bedding floribunda and occasional cut flower without dominating mixed plantings. |
| Hip characteristics |
Occasionally forms small ellipsoid red hips about 8–12 mm in diameter; hips are incidental to its main use and do not significantly influence production or finished-product positioning. |
| Resistance and winter hardiness |
Rated resistant to powdery mildew, black spot and rust; hardy to approximately −21 to −18 °C (RHS H7, Swedish zone 3, USDA zone 6b), supporting dependable performance in colder and more exposed production regions. |
| Horticultural recommendations |
Suited to flower beds and cut-flower use with low maintenance needs; supplied as bush-trained, compact own-root material for standard 2–3 L container production and straightforward integration into professional nursery workflows. |
Diamant® Bedding rose KOReb offers disease-resistant, compact floribunda performance on predictable, long-lived own roots, supporting homogeneous stock and efficient standard-container production; please contact us to align on capacity and scheduling for your programmes.
