Bleu Magenta – pharmaROSA® NEONATAL own-root rambler climbing rose
Vertical production value, climber reliability and own-root stability make Bleu Magenta a practical choice for nurseries building trained rambler lines for pergolas, arbours and walls at 5–7 L. Its vigorous growth delivers 3–5 main canes suited to staked, pre-trained supply, giving you a predictable base for exclusive, space-defining vertical features in thematic and collection gardens. Once-blooming but floriferous, the very double, cluster-flowered, purple-toned colour display supports premium, speciality positioning for retail and reseller partners focused on distinctive habits. Hardy to H7 and USDA 5b with medium disease resistance, it fits UK nursery networks serving sites where winter and wind exposure are common, helping structure reliable stocks and repeatable batches. The own-root NEONATAL format underpins long-term longevity in production blocks and finished installations, following a natural arc from root establishment in year one, structural cane build-up in year two and full ornamental value by year three.
Usage options
Finished-product ideas
- 5–7 L staked climber for retail pergolas – NEONATAL own-root plants grown on to 5–7 L with 3–5 trained canes as a ready-to-place pergola or arbour unit, built around vigorous framework growth and AGM-backed reliability – target audience/channel: retail / reseller chains.
- Collection-grade rambler for thematic rose gardens – finished plants supplied as trained climbers for arbours and walls in rose collections, combining distinctive purple colour and historical French origin to support storytelling – target audience/channel: show gardens and thematic public collections.
- Vertical park feature in contractor-ready pots – 5–7 L containers with robust cane structure for quick installation on pergolas or wall systems, leveraging own-root longevity and medium maintenance needs – target audience/channel: landscape and municipal contractors.
- Private-label AGM heritage climber – branded line highlighting AGM status and speciality vertical habit, produced from uniform NEONATAL batches for consistent shelf presence – target audience/channel: integrator wholesalers supplying branded retail concepts.
- Architectural wall-trainer for urban schemes – container-grown, pre-trained climbers positioned as vertical garden features for urban green spaces, using reliable hardiness and structured growth habit for repeatable project outcomes – target audience/channel: public-realm and urban-greening suppliers.
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Bleu Magenta – rambler, Hybrid Multiflora climbing rose; current trade name “Bleu Magenta Climbing rose”; unregistered cultivar with ARS exhibition name Bleu Magenta and verified authenticity data. |
| Origin and breeding |
Introduced in 1933 by Grandes Roseraies du Val de Loire, Orléans, France; breeding year 1933, parentage unknown; developed within classical European rambler breeding traditions for ornamental garden use. |
| Awards and recognition |
Holds the RHS Award of Garden Merit, supporting its credibility and performance for UK gardens and collections; a useful marker for retail and project clients seeking tested, reliable climbing cultivars. |
| Growth and structural characteristics |
Climbing rambler with 300–500 cm height and 200–350 cm spread; moderately dense, glossy dark green foliage; slightly thorny shoots; medium self-cleaning, best with periodic pruning of spent clusters. |
| Flower morphology |
Medium-sized 1.5–2.75 in, very double, cupped cluster-flowered blooms; 40+ petals; once-blooming (not remontant), giving a concentrated seasonal display suited to vertical accent and heritage-style plantings. |
| Colour data and phenology |
Deep crimson-violet with bluish-lilac tones; buds crimson-red with purple tint; flowers open reddish-purple, then show bluish shimmer; colour fades to smoky grey-mauve, deeper in cooler, partially shaded sites. |
| Fragrance and aroma |
Light, subtle, fresh character; fragrance present but not dominant, supporting use where colour and structure are primary; highly double blooms mean limited value for pollinator-focused plantings. |
| Hip characteristics |
Hip set generally limited due to very double flowers; occasional small spherical orange hips, around 5–8 mm diameter, may appear but are not a primary ornamental or propagation feature. |
| Resistance and winter hardiness |
Medium overall disease resistance; resistant to powdery mildew, medium for black spot and rust; hardy to approximately –26 to –23 °C, RHS H7, Swedish zone 4, USDA 5b for robust UK and similar climates. |
| Horticultural recommendations |
Best on arbours, pergolas and walls with training; medium maintenance and irrigation needed in drought; suited to trained climber production in 5–7 L pots, supplied staked with 3–5 canes for vertical use. |
Bleu Magenta combines vigorous vertical framework, AGM-backed reliability and own-root longevity to support predictable, regenerative climbing rose lines; please contact us to align capacity and scheduling for your next production cycle.
