William Christie™ Générosa® MASwicri – pharmaROSA® NEONATAL rooted cutting
Romantic shrub material in the pharmaROSA® NEONATAL line, William Christie™ offers own-root stability for nurseries building premium, exhibition-class shrub ranges with reliable, repeatable quality in 3–6‑month tray-rooted cuttings. As a bush-trained, 3–5‑cane framework shrub with low maintenance needs and documented disease resistance, it fits efficiently into professional production where homogeneous stands and low replacement underpin capacity planning. The strong, citrus–myrrh fragrance and very double, rosette blooms in bright mid‑pink with coral tones support “exclusive finished product” positioning in premium container routes, particularly 5–7 L and upwards to 40–50 L for feature specimens. Its winter-hardy performance suits UK nursery networks seeking reliable stock for projects exposed to wind and colder sites, aligning with professional suppliers serving demanding, weather‑exposed landscapes in the north and west. Across year one for roots, year two for structural shoots, and year three for full ornamental impact, the own-root base gives a renewable, long-lived platform for retail and reseller partners targeting high-end shrub rose segments.
Usage options
Finished-product ideas
- Premium 5–7 L Romantic Shrub – exploitation of exhibition flower quality and strong fragrance in a compact, bush-trained form, grown from NEONATAL own-root material for low-maintenance, disease-resistant performance – retail / reseller premium benches
- 40–50 L Feature Nostalgia Rose – large container specimen built on the cultivar’s height, spread and romantic mid-pink rosettes, using sturdy 3–5 cane structures from NEONATAL to deliver exclusive finished product presence – high-end garden centres and show gardens
- Collection-Bed Générosa® Line – uniform own-root plants in 5–7 L or field rows, highlighting the Générosa® and Romantica identity with stable traits and low replacement, suited to thematic and gene-bank style displays – specialist nurseries and public collections
- Park and Institutional Shrub Unit – disease-resistant, low-intervention shrubs supplied in robust 7–15 L sizes derived from NEONATAL stock, focusing on hardiness and durable flowering for park, avenue and campus schemes – public-realm and institutional contractors
- Nostalgia Cut-&-Garden Shrub – promotion of the fragrant, very double mid-pink blooms for mixed garden and occasional cut use, from own-root 5–7 L containers that integrate easily into premium shrub benches – independent retail networks and integrator systems
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Romantica shrub in the Générosa® collection; registered as MASwicri, traded as William Christie™ Générosa® MASwicri, with William Christie® as the American Rose Society approved exhibition name. |
| Origin and breeding |
Bred by Dominique Massad in France from ‘Versigny’ × unknown individual; bred 1997, introduced and registered 1998 by Roseraies Pierre Guillot / Guillot, Chamagnieu, reflecting classic French romantic breeding lines. |
| Awards and recognition |
not provided |
| Growth and structural characteristics |
Bushy shrub habit, 130–190 cm high and 110–170 cm spread, moderately thorny with moderately dense, mid-green, slightly glossy foliage; supplied bush-trained with 3–5 strong framework canes for structured shrub development. |
| Flower morphology |
Large, very double, rosette-shaped blooms with over 40 petals, presented in clusters; remontant, with an abundant second flowering phase supporting extended ornamental performance in premium shrub uses. |
| Colour data and phenology |
Bright mid-pink with subtle coral tones; buds deeper pink, opening to medium pink outer petals and pale powder-pink inner rosette; colour lightens to shell- and pastel pink, with an almost whitish-pink veil as blooms age. |
| Fragrance and aroma |
Strong, pronounced fragrance with citrus and myrrh notes; a mainly ornamental cultivar with very double flowers that limit pollinator access due to concealed stamens and reduced nectar and pollen availability. |
| Hip characteristics |
Hip set is generally limited by the very double blooms; occasionally produces small spherical red hips, approximately 9–15 mm in diameter, adding minor seasonal interest without being a primary feature. |
| Resistance and winter hardiness |
Rated resistant to powdery mildew, black spot and rust; hardy to approximately –21 to –18 °C, corresponding to RHS H7, Swedish zone 3 and USDA zone 6b, suitable for colder and more exposed planting sites. |
| Horticultural recommendations |
Recommended for flowerbeds, specimen use, cut flowers and parks; low maintenance requirement due to good disease resistance; best routed as a premium container shrub from pharmaROSA® NEONATAL rooted cutting supply. |
William Christie™ Générosa® MASwicri, with its fragrant romantic blooms, disease resistance and hardy own-root structure, offers predictable, long-lived shrub stands for premium programmes; we would be pleased to coordinate volumes and scheduling with you.
