GLAUCA CARMENETTA – mauve-pink park rose – Preston
Botanical own-root propagation of GLAUCA CARMENETTA offers growers a resilient shrub framework for nursery beds and standard container programmes, with a bushy, arching habit that scales reliably into 2–3 L routes and beyond. As a park and urban-green-space subject, its moderately dense grey-green foliage and clear mauve-pink spring flush support reliable garden performance as a standard finished product, while own-root longevity underpins long-term hedge and specimen applications. With H7 hardiness to around -40 °C and dependable structure, it is well suited to UK schemes exposed to colder winds and northern conditions, answering demand where winter and wind pose recurrent pressures. The non-remontant, once-flowering display and ornamental hips create a defined seasonal peak that is easy to schedule for retail windows, while self-cleaning flowers simplify crop presentation. Onward growers can build uniform, bush-trained, compact liners into larger 40–50 litre landscape formats, developing a consistent hedge or specimen profile over several seasons. Own-root material supports a steady development arc from root establishment through structural build-up to full ornamental value, allowing you to plan capacity and turnover with confidence. For thematic and botanical rose collections, this historic Preston introduction broadens diversity within shrub assortments, while the pharmaROSA NEONATAL platform secures predictable input quality at scale for integrated nursery networks.
Usage options
Finished-product ideas
- 2–3 L park-spec shrub – Own-root, bush-trained liners carried through to 2–3 L standard containers, marketed as reliable garden performance park roses for mixed shrub benches – target: retail / reseller networks
- 40–50 L hedge module – Vigorous, arching own-root shrubs step-potted into 40–50 litre units to create ready-structured hedge and screen elements for municipal and commercial projects – target: public-realm suppliers
- Botanical collection specimen – Individually labelled shrubs in mid-size containers emphasising parentage and Preston provenance, suited to thematic rose gardens and curated collections – target: show-garden and institutional clients
- Urban park rose line – Robust H7-hardy plants finished in 5–10 L pots as park rose units for bulk planting in urban green space schemes, prioritising structural reliability over repeat flowering – target: landscape contractors
- Ornamental hip accent shrub – Selected plants with noted hip display, grown into 10–15 L containers for use as seasonal fruit-interest accents in public plantings and larger private schemes – target: landscape-oriented resellers
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Current trade name GLAUCA CARMENETTA – mauve-pink park rose – Preston; ARS exhibition name Carmenetta; shrub rose, botanical rose commercial group; unregistered cultivar with verified authenticity status. |
| Origin and breeding |
Bred by Isabella Preston at Agriculture Canada’s Central Experimental Farm, Ottawa; Rosa glauca × Rosa rugosa cross; bred and introduced in Canada in 1923 as part of early hardy shrub rose work. |
| Growth and structural characteristics |
Bushy shrub with upright, arching branches, 240–360 cm high and 160–260 cm spread; moderately dense, matt grey-green foliage; moderately thorny shoots; self-cleaning flowers with hips retained after petal fall. |
| Flower morphology |
Single to semi-single, flat flowers with 5–12 petals, small size (0.5–1.5 inches), produced in clusters; once-blooming, non-remontant habit giving a single main flowering period under garden conditions. |
| Colour data and phenology |
Mauve-pink colour with a cool lilac cast; buds deep mauve-pink, opening to medium-light tones that fade to pastel pinkish lilac; colour retention moderate, with quicker lightening under strong sunlight exposure. |
| Fragrance and aroma |
Soft, elegant fragrance of mild strength; a restrained-scented shrub rose where visual and structural qualities outweigh perfume, but with sufficient scent presence for close-up garden appreciation. |
| Hip characteristics |
Sparse but noticeable spherical dark red hips, about 12–18 mm diameter, develop from self-cleaning flowers; ornamental fruit effect limited but useful in mixed plantings and educational or botanical settings. |
| Resistance and winter hardiness |
Fully hardy to approximately -40 to -37 °C (RHS H7, Swedish zone 6, USDA 3a); moderate overall disease resistance, with moderate susceptibility to powdery mildew and rust and higher susceptibility to black spot. |
| Horticultural recommendations |
Suited to parks, hedges, specimens, ornamental fruit and urban green spaces; medium maintenance; needs attention in shaded, damp or poorly ventilated sites; recommended through standard container routes from 2–3 litre upwards. |
GLAUCA CARMENETTA offers hardy shrub stature, manageable maintenance and ornamental hip interest on a long-lived own-root base, supporting predictable, regenerating stands for park and hedge use; we would welcome discussing volumes and timing to suit your programmes.
