PRINCESSE DE MONACO® GPT – pharmaROSA® NEONATAL own‑root propagation material
Climbing own‑root pharmaROSA® NEONATAL material for vertical feature production, providing a stable base for trained climber lines where structure, colour impact and medium maintenance needs are commercially balanced; its dense, glossy foliage supports premium wall and pergola ranges in nursery networks operating nationwide, including routes where winter and wind exposure require dependable hardiness; as tray‑rooted 3–6‑month material it integrates predictably into staged training programmes towards 5–7 L finished product climbers, building own‑root stands that mature from root establishment in year one, to structural cane development in year two, and full ornamental expression from year three for wholesale and project‑driven collections.
Usage options
Finished-product ideas
- 5–7 L TRAINED CLIMBER – Own‑root plants stepped from NEONATAL trays into 5–7 L, trained to 3–5 canes for walls and fences, maximising colour impact and vertical habit – retail garden centres and quality resellers
- PERGOLA FEATURE PAIRS – Matched, staked climbers selected for height and spread uniformity from own‑root lines, sold as coordinated pairs for pergolas and arbours – landscapers and project‑driven wholesale
- MEILLAND CLASSICS COLLECTION – Curated Meilland‑labelled assortment including this sport, using own‑root material for long‑term cultivar stability in thematic rose gardens – public gardens and collection nurseries
- COLD‑HARDY CLIMBER RANGE – H7, zone 4a‑capable climbers in 5–7 L pots, positioned for exposed or northern schemes where own‑root robustness and regeneration reduce replacement risk – municipal and institutional buyers
- DISPLAY WALL MODULE – Pre‑trained climbers in uniform containers for use on nursery or retailer trellis walls, demonstrating vertical flowering and dense foliage for upselling – integrated nursery–retail networks
Technical cultivar profile
| Name and registration |
Climbing rose cultivar MEIbergamu, marketed as PRINCESSE DE MONACO® GPT in the MEILLAND Classics collection; ARS exhibition name Princesse de Monaco, Cl.; authenticity verified 11.11.2025. |
| Origin and breeding |
Natural sport of ‘Princesse de Monaco’, bred by Meilland International (breeding year 1985, Australia); introduced by Meilland Richardier in France in 2014 as a climbing form; registration year not provided. |
| Growth and structural characteristics |
Large‑flowered climbing rose reaching around 210–310 cm in height and 120–190 cm spread, with dense, glossy dark green foliage and moderate prickliness; moderate self‑cleaning so some spent blooms remain. |
| Flower morphology |
Very large, double, cup‑shaped blooms (26–39 petals), mainly solitary on stems; remontant, with an initially strong flush followed by an equally abundant second flowering when grown under suitable conditions. |
| Colour data and phenology |
Cream‑white base petals edged all round with a pink to carmine border; buds ivory with pink tinge, colour lightens slightly in strong sun and edging may soften, but remains a clear bicolour in full bloom. |
| Fragrance and aroma |
Fragrance is very weak, with only a barely noticeable fresh, lively character; visual effect rather than scent should be considered the primary ornamental value in production and marketing decisions. |
| Hip characteristics |
Rose hips form only slightly due to the full double flowers, producing small ellipsoid orange‑red hips around 10–14 mm in diameter, of minor ornamental and propagation significance in standard production. |
| Resistance and winter hardiness |
Rated H7, Swedish zone 5, USDA 4a, tolerating approximately –34 to –32 °C; moderate resistance to powdery mildew, black spot and rust; flowers well in warmth but needs regular watering in prolonged dry periods. |
| Horticultural recommendations |
Best used on walls, fences, pergolas, arbours and pillars; medium maintenance with occasional plant protection and grooming; recommended as a staked, trained climber release from 5–7 L containers for vertical features. |
PRINCESSE DE MONACO® GPT, as an own‑root, hardy climbing rose with strong vertical impact and reliable repeat flowering, offers predictable long‑term stands for trained climber ranges; we would welcome aligning on capacity and scheduling for your programmes.
