Amadeus® Klettermaxe® KORlabriax – pharmaROSA® NEONATAL own-root climber propagation material
This climber in the Klettermaxe® collection offers a strong climbing framework, producing large, cup-shaped, semi-double clusters that remain reliably red with very good colour retention even in strong sun. Its dense, glossy dark-green foliage and good hardiness to approximately -26 °C support dependable performance in UK nursery and public-realm supply chains, even under winter and wind-exposed conditions. As pharmaROSA® NEONATAL own-root material, it provides a regenerating, long-lifespan base for trained climber programmes, aligning with professional propagation beds and 5–7 L container grow-on for exclusive, space-defining finished product. The remontant flowering habit with a plentiful second flush and moderate pollinator value suits thematic rose gardens, arches and walls where vertical impact and cultivar identity matter. Year 1 focused on rooting, Year 2 on structural shoot-building and Year 3 on full ornamental display allows predictable scheduling into premium retail and reseller channels.
Usage options
Finished-product ideas
- Premium arch climber 40–50 L – Own-root, pre-trained climbers grown on from 5–7 L to 40–50 L containers with 3–5 structured canes for immediate vertical impact over arches and pergolas, positioned as exclusive vertical garden features – retail / reseller.
- Thematic collection climber 5–7 L – Uniform 5–7 L own-root plants highlighting exhibition pedigree and stable red colour, ideal for cultivar collections and show gardens requiring verified identity and consistent presentation – collection-focused resellers.
- Urban façade feature line – Heat-tolerant, foliage-dense climbers in 40–50 L for walls and urban pergolas, produced from NEONATAL material to ensure long-lived structures where irrigation and maintenance are assured – urban project suppliers.
- Pollinator-supporting display climber – Semi-double, remontant red clusters in 5–7 L trained form, combining visual impact with moderate pollinator interest for thematic gardens and curated public plantings – public-realm suppliers.
- Managed high-care specialty climber – Own-root trained climbers in 5–7 L offered explicitly as high-maintenance, protection-dependent vertical accents, fitting premium, space-defining ranges where professional aftercare is available – professional nurseries.
Technical cultivar profile
| Name and registration |
Climber, large-flowered climber from the Klettermaxe® collection; registered as KORlabriax, traded as Amadeus® Klettermaxe® KORlabriax; ARS exhibition name Amadeus™; commercial type climbing rose. |
| Origin and breeding |
Bred by W. Kordes III, W. Kordes’ Söhne, Germany; breeding and registration year 2003, introduced 2007; parentage not provided; distributed initially by W. Kordes’ Söhne for international ornamental use. |
| Awards and recognition |
Highly decorated exhibition climber: gold medals at Hague and Geneva International Rose Trials 2004, gold medal at Lyon 2005, plus a Certificate of Merit at Bagatelle (Paris) 2004, supporting premium positioning. |
| Growth and structural characteristics |
Vigorous climbing habit reaching about 240–380 cm in height and 90–160 cm spread, with moderately thorny stems and dense, glossy dark-green foliage; moderate self-cleaning, some deadheading required, especially in wet periods. |
| Flower morphology |
Semi-double cup-shaped flowers, 13–25 petals, large-sized clusters around 2.75–3.95 inches across; cluster-flowered inflorescences with remontant behaviour and a plentiful second flush, supporting extended display periods. |
| Colour data and phenology |
Deep, lustrous red flowers (ARS DR; RHS 53A outer, 46A inner) with ruby-red buds; colour holds extremely well in sun, darkening slightly rather than fading or blueing, giving a consistently strong scarlet-red impression in full bloom. |
| Fragrance and aroma |
Mild, fresh rose scent of restrained intensity, contributing background fragrance without dominating planting schemes; semi-double flowers with partially open centres provide moderate bee attraction and pollinator interest. |
| Hip characteristics |
Forms spherical hips in moderate numbers, around 9–15 mm diameter, orange-red (RHS 40A); hips may contribute light seasonal interest in less heavily deadheaded or lower-maintenance situations where display is allowed to mature. |
| Resistance and winter hardiness |
Hardy to approximately -26 to -23 °C (USDA 5b, RHS H7, Swedish zone 4); disease profile shows high sensitivity to powdery mildew with moderate susceptibility to black spot and rust, requiring planned protection regimes in production and use. |
| Horticultural recommendations |
Best used as a trained climber for walls, pergolas, arches and urban green structures; high maintenance needs, including regular plant protection and some deadheading; NEONATAL own-root form suits staked, 3–5 cane training in 5–7 L pots. |
Amadeus® Klettermaxe® KORlabriax as pharmaROSA® NEONATAL own-root material combines reliable hardiness, stable deep-red colour and a strong climbing framework with predictable, regenerative stands, making it a sound candidate for discussing future trained climber capacity.