PERENNIAL BLUE™ – purple climbing rambler rose - Mehring
Perennial own‑root propagation material offers a reliable base for trained climber production where vertical impact and colour identity are commercially important. As a medium‑maintenance, remontant rambler with clusters of semi‑double, mauve‑purple blooms, it supports repeatable scheduling for pergola, arch, fence and wall programmes. Tray‑rooted pharmaROSA® NEONATAL cuttings develop predictably from Year 1 roots through Year 2 structural shoots to full ornamental value from Year 3, underpinning homogeneous stands and low replacement in nursery and integrator systems. Its climbing habit and manageable height suit 5–7 L trained production as a space‑defining specialty climber, while own‑root longevity supports long‑term stock blocks for thematic and collection gardens in UK conditions, including sites where winter and wind exposure demand dependable hardiness performance. The ADR‑recognised resilience and award background add credibility for private‑label and show‑garden ranges, providing stable stock for retail and reseller partners focused on vertical garden features.
Usage options
Finished-product ideas
- 5–7 L trained climber, pergola series – NEONATAL plants finished as 3–5 cane staked climbers in 5–7 L pots, highlighting height, spread and cluster flowering for pergola use – retail / reseller vertical feature lines
- “Perennial Purple Wall” collection – coordinated fence and wall concept focusing on the mauve‑purple colour signature and remontant flowering, supplied as uniform own‑root climbers – garden-centre thematic programmes
- ADR award showcase climber – badge the ADR and other awards on labels and benching, positioning it as a proven, medium‑maintenance climber within premium silver assortments – quality‑focused retail partners
- Show‑garden and collection stock – use NEONATAL plants to establish long‑term own‑root stock in open ground or large containers (40–50 L) for thematic rose gardens requiring stable, identifiable cultivars – public‑realm and institutional projects
- Vertical “feature arch” duo packs – pair trained NEONATAL climbers for arch planting concepts, utilising the controlled habit and repeat flowering to support added‑value merchandising – independent design‑oriented nurseries
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Rambler / large‑flowered climber; registered as Mehv9601, marketed as PERENNIAL BLUE™ (Perennial, Mehv9601). ARS exhibition name Perennial Blue supports consistent international listing. |
| Origin and breeding |
Bred by Bernard F. Mehring in the United Kingdom from Super Excelsa × Veilchenblau. Introduced by Eurosa (Germany) in 2003; registration year data currently not provided. |
| Awards and recognition |
Holds ADR status in Germany (2013), with Baden‑Baden Silver Medal (2006) and 1st Prize at Baden bei Wien (2014), supporting performance‑oriented, professional positioning. |
| Growth and structural characteristics |
Climbing habit reaching about 240–380 cm in height and 150–260 cm spread. Moderately dense, mid‑green, slightly glossy foliage with moderate thorniness, suitable for training on pergolas, arches and walls. |
| Flower morphology |
Semi‑double, cup‑shaped flowers with 13–25 petals and small individual bloom size (approximately 0.5–1.5 in), carried in large, cluster‑flowered inflorescences and flowering remontantly with an abundant second flush. |
| Colour data and phenology |
Mid‑saturated crimson‑purple base with velvety lavender‑purple effect and silvery bloom; RHS 77A outer, 77B inner. Colour intensifies in cooler conditions, while heat and strong sun cause moderate fading to greyish‑lilac tones. |
| Fragrance and aroma |
Fresh, fruity fragrance character but very faint and barely noticeable in normal garden use, so fragrance plays a minor role in finished‑product positioning compared with colour and structure. |
| Hip characteristics |
Sets moderate quantities of small, spherical red hips, around 6–10 mm in diameter, providing some late‑season visual interest without significantly altering maintenance regimes. |
| Resistance and winter hardiness |
Rated H7 with hardiness approximately −21 to −18 °C, Swedish zone 3, USDA 6b. Disease resistance is medium overall, with medium responses to powdery mildew, black spot and rust; moderate watering is advised in dry spells. |
| Horticultural recommendations |
Best used on pergolas, arches, fences and walls as a trained climber. Medium maintenance with occasional pest and disease control; no reliable long‑term drought data, so plan for moderate irrigation provision. |
PERENNIAL BLUE™ offers award‑backed vertical impact, distinctive purple cluster flowering and long‑term own‑root reliability for predictable, regenerating stands; please contact us to coordinate volumes and scheduling for your programmes.
