ICE COOL – white climbing rose – DELgribla
Vertical pergola and façade projects benefit from ICE COOL’s disciplined climbing habit, glossy dark-green foliage and pure white, high-centred flowers that read clearly in retail and public-realm planting schemes. As tray-grown pharmaROSA® NEONATAL own-root material, it offers a stable propagation base for nurseries building trained climber ranges, with renewable growth supporting multi-year cropping and low replacement in collection beds. Its height and spread suit classic arch, fence and solitary feature work, while medium maintenance needs align with UK nursery networks serving coastal and inland sites where winter and wind exposure are relevant. With rooted cuttings moving from Year 1 roots to Year 2 structural canes and full ornamental expression by Year 3, 5–7 L trained, staked finished plants can be programmed consistently for exclusive, space-defining projects and specialty ranges targeting vertical-garden features in the higher-value reseller channel.
Usage options
Finished-product ideas
- 5–7 L trained pergola climber – NEONATAL own-root cuttings grown into 5–7 L, 3–5 cane, staked plants highlighting the strong climbing habit and pure white flowers, positioned as an exclusive vertical garden feature for premium garden-centre and design-led retail ranges.
- Façade and fence collection line – Uniform own-root batches trained for linear planting, using dense foliage and defined height to support a clean façade/fence look, offered as a specialty space-defining range for landscaper-oriented resellers and project suppliers.
- Show-garden specimen climber – Select, evenly-structured plants from NEONATAL material finished as solitary 5–7 L climbers with exhibition flower form, targeted to nurseries supplying thematic rose gardens, show gardens and high-profile retail feature displays.
- Park structure climber SKU – Medium-maintenance, hardy own-root climbers specified for arches and pergolas in parks, delivered as staked 5–7 L units that can be repeated reliably across contracts, aimed at public-realm and institutional project channels needing vertical garden features.
- White-theme collection element – Batches selected for colour purity and stable creamy ageing, finished as trained climbers in 5–7 L pots to integrate into white or light-colour rose collections, for specialist nurseries and resellers building exclusive, space-defining thematic ranges.
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Climbing rose cultivar DELgribla, traded as Ice Cool Grand Colours DELgribla, with the ARS exhibition name Blanche Colombe; French name meaning “white dove”, exhibition large-flowered climber category. |
| Origin and breeding |
Bred by Georges Delbard at Roseraies Georges Delbard, France, with parentage unknown; bred, registered and introduced in 1995, initially distributed by Roseraies Georges Delbard for climbing rose markets. |
| Growth and structural characteristics |
Climbing habit reaching about 240–360 cm in height with 160–240 cm spread, moderately thorny canes and dense, dark green glossy foliage, suited to training on arches, pergolas, fences or façades as a vertical structure rose. |
| Flower morphology |
Semi-double, high-centred, pointed-budded flowers of medium size (about 1.5–2.75 in) borne mainly solitary; petal count typically 13–25 with a remontant habit giving a good second flush under suitable cultural conditions. |
| Colour data and phenology |
Classed as white with ARS code W; petals NN155C outside and NN155D inside, initially bright icy white then pure snow-white, ageing to soft milky-cream with occasional faint yellowish-white tones, generally stable in full bloom. |
| Fragrance and aroma |
Fragrance strength very weak and barely noticeable, with no detailed scent description available; semi-double blooms offer partly accessible stamens, giving only moderate pollinator attraction and primarily ornamental value in planting schemes. |
| Hip characteristics |
Hip formation expected to be sparse because of the semi-double, partly double flower form; where produced, hips are spherical, approximately 6–10 mm diameter, and orange-red, contributing limited but present seasonal interest. |
| Resistance and winter hardiness |
Moderate overall disease resistance, with moderate powdery mildew and rust susceptibility but resistant to black spot; rated H7, Swedish zone 3 and USDA 6b, tolerating -21 to -18 °C and moderate heat with irrigation in prolonged drought. |
| Horticultural recommendations |
Recommended for pergolas, arches, fences, façades, solitary and park uses; medium maintenance requiring periodic pest and disease control plus deadheading; best sold as staked, trained 3–5 cane climbers, with NEONATAL 5–7 L routes practical. |
ICE COOL Grand Colours DELgribla offers a predictable climbing framework, dense glossy foliage and pure white ornamental value on long-lived own-root stands, making it a reliable candidate for trained climber programs where we can jointly plan volumes and timings.