Pierre Arditi® – pharmaROSA® NEONATAL own-root propagation material
Premium own-root pharmaROSA® NEONATAL material of Pierre Arditi® offers a stable propagation base for nurseries targeting exclusive hybrid tea production, where strong fragrance and immaculate white flower quality are the core selling points. As a large-flowered solitary hybrid tea bred for exhibition and cut-flower use, it is best channelled into premium 5–7 L container programmes and bush-trained release forms with 3–5 framework canes for retail and reseller partners focused on high-value, specimen-grade stock. The own-root base supports long-term longevity and predictable re-propagation capacity, contributing to homogeneous stands and lower replacement in nursery and integrator systems while remaining compatible with supply chains serving public and institutional projects in cooler parts of the UK where winter resilience and wind exposure are key considerations. Under intensive management, growers can build crop plans on a clear development arc from root establishment through vegetative build-up to full ornamental performance by the third season, aligning production windows with planned premium container and cut-flower releases.
Usage options
Finished-product ideas
- Premium 5–7 L exhibition bush – Own-root, bush-trained plants with 3–5 canes in 5–7 L containers, positioned as exclusive exhibition-grade white hybrid teas where flower form and fragrance dominate – target: retail / reseller
- Fragrance-focused cut-flower block – Densely planted own-root rows maintained under high-input protection to maximise XL, high-centred blooms for show and vase use, feeding premium cut-flower assortments – target: retail / reseller
- Collector and thematic garden line – Curated own-root stock for rose collections and thematic white gardens, delivered as premium container specimens with clear cultivar identification and long-term maintenance potential – target: retail / reseller
- Cold-climate hardy white series – Branded line emphasising H7 hardiness and pure white colour, produced in 5–7 L pots from NEONATAL material for nurseries supplying cooler regions and demanding show gardens – target: retail / reseller
- Exclusive private-label white hybrid tea – Own-root Pierre Arditi® as a flagship SKU in a private-label range, offering homogeneous, high-value, remontant plants in premium containers for differentiated retail programmes – target: retail / reseller
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Hybrid tea rose, registered as MEIcalanq, traded as Pierre Arditi®; exhibition category cut flower/exhibition hybrid tea; ARS approved exhibition name Pierre Arditi®; masculine given-name origin. |
| Origin and breeding |
Bred in France in 2008 by Alain Meilland, Meilland International; introduced after 2011 and registered in 2011; initial distribution by Meilland International (France); parentage unknown. |
| Awards and recognition |
Gold medal and special awards Buenos Aires (2007 Grandes Fleurs, Arts, Jeunes); St Albans Grandes Fleurs special award and Certificate (2008); Rome Gold medal and fragrance-related recognition (2008). |
| Growth and structural characteristics |
Upright hybrid tea bush, 95–125 cm high, 60–80 cm spread; dense, glossy dark green foliage; moderately thorny; spent blooms self-clean weakly and usually require deadheading to maintain display quality. |
| Flower morphology |
Very double, 40+ petalled XL blooms, solitary on stems; cup-shaped with distinctly medium high-centred form; remontant with abundant second flowering; ideal for specimen, cut flower and exhibition use under management. |
| Colour data and phenology |
Crystal-clear bright white without yellow or pink; buds deep ivory-white; newly opened flowers snow-white with emerald-green stigmas; colour holds medium well, fading to matte white with a faint silvery sheen at petal edges. |
| Fragrance and aroma |
Very strongly scented hybrid tea with rich, perfumed character; fragrance detectable from a distance; ornamental rather than pollinator-oriented, as very double flowers limit access to stamens and pollen. |
| Hip characteristics |
Scarce hip set; where present forms small ovoid red hips, approximately 10–14 mm in diameter, with limited ornamental or production significance in standard programmes. |
| Resistance and winter hardiness |
Highly susceptible to powdery mildew, black spot and rust; requires intensive protection and regular interventions; moderately tolerant of heat and drought if watered; hardy to around -21–-18 °C (RHS H7, Swedish Zone 3, USDA 6b). |
| Horticultural recommendations |
Best suited to premium container and specimen production, flower beds and cut-flower use under high-input regimes; maintenance requirement high, with regular pest/disease control; release as bush-trained plants with 3–5 framework canes. |
Pierre Arditi® MEIcalanq in pharmaROSA® NEONATAL form combines award-winning pure white, very fragrant hybrid tea blooms with own-root predictability and regeneration, making it a sound choice for planned premium capacity where we can jointly fine-tune volumes and timing.
