CLAUS DALBY™ – cream-white hybrid tea rose - Olesen
Premium own-root pharmaROSA® NEONATAL material of CLAUS DALBY™ gives nurseries a focused route into exhibition-grade hybrid teas: uniform tray-rooted cuttings, bush-trained towards 3–5 strong canes, ideal for a container-led programme built around 5–7 L premium lines and larger 40–50 litre feature specimens. Dense, glossy dark green foliage, bushy habit and a compact 85–115 cm framework support predictable canopy shaping for retail-ready stock in the “exclusive finished product” bracket, while own-root longevity and regeneration underpin low-replacement, homogeneous production blocks over multiple cropping cycles. The high-centred, very full flowers in warm cream-white are sized for both exhibition hybrid tea and cut-flower use, with colour evolution that stays within a refined ivory to snow-white palette valued in UK thematic rose gardens and curated collections. Strong, long-lasting honey-like fragrance aligns with the cultivar’s fragrance medals and makes it highly suitable for show gardens and premium reseller assortments serving design-led and institutional clients in regions where robust winter hardiness and reliable structure support long-term planting, even in cooler, exposed projects across northern Britain with good resilience to wind and low temperatures. The remontant, plentiful second flowering provides season-long display potential, with own-root development progressing naturally from root establishment in year one, through structural shoot build-up in year two, to full ornamental value from year three in finished production formats.
Usage options
Finished-product ideas
- Premium 6 L cream-white hybrid tea – Bush-trained NEONATAL plants finished in 6 L containers, showcasing bushy habit and dense dark foliage with high-centred cream-white blooms; positioned as an exclusive finished product for upper-tier retail and reseller benches.
- Large 45 L scented feature rose – Step-up production from 5–7 L into 45 L containers over additional seasons, capitalising on strong fragrance and own-root longevity for use as statement specimens in thematic rose gardens and design-led landscape projects.
- Exhibition bench and cut-stem line – Selected plants from premium container blocks managed for straight, strong stems and solitary, very full flowers, supplying both show-bench blooms and niche cut stems to specialist rose traders alongside finished-container sales.
- White-theme collection trio – Combine CLAUS DALBY™ with two complementary cream/white cultivars in matched 5–7 L pots, leveraging its colour stability and rebloom for curated “white garden” assortments aimed at project suppliers and high-end retail collections.
- Authentic cultivar collection bed stock – Use verified NEONATAL plants as foundation material for collection beds, maintaining bush-trained structure and hardiness for gene-bank style or show-garden plantings that underpin exclusive finished product narratives for visitors and partners.
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Hybrid tea rose, registered as POUlht009, marketed as Claus Dalby™ Hybrid Tea POULSEN® POUlht009, with the American Rose Society exhibition name Serenity, in the Hybrid Tea POULSEN® collection. |
| Origin and breeding |
Bred in Denmark in 2006 by Mogens Nyegaard Olesen of Poulsen Roser A/S, from unnamed seedling × unnamed seedling, introduced commercially after 2013 with EU PBR protection registered in 2013 under number 2013/2166. |
| Awards and recognition |
Decorated in multiple 2015 trials: Tokyo gold medal for fragrance and silver in Category I, Nantes audience fragrance award, Baden‑Baden silver medal, and a Certificate of Merit from Paris (Ingénieur des Services Techniques). |
| Growth and structural characteristics |
Bushy habit, 85–115 cm high with 65–95 cm spread, moderately thorny with dense, glossy dark green foliage; self-cleaning is weak so spent very double blooms may require occasional manual removal to maintain presentation. |
| Flower morphology |
Large, very full double flowers with 40+ petals, borne mainly solitary on stems, forming high-centred, pointed buds characteristic of cut-type hybrid teas; the variety is remontant with a plentiful second flush under suitable culture. |
| Colour data and phenology |
Cream-white blooms, RHS 155C outer and 155D inner, opening soft cream with pale vanilla centre, maturing to uniform creamy white and finally to almost snow-white, with a silky petal surface and gradual, medium-speed colour fading. |
| Fragrance and aroma |
Strong, long-lasting fragrance with a honey-like character, primarily ornamental rather than pollinator-oriented because the highly double flower form conceals reproductive organs, resulting in limited pollen access and attraction. |
| Hip characteristics |
Hip formation is generally limited due to the very double blooms, but when produced, hips are spherical, orange-red, around 12–16 mm in diameter, adding modest autumn interest without significantly impacting flowering performance. |
| Resistance and winter hardiness |
Moderate resistance to powdery mildew, black spot and rust; rated hardy to approximately -21–-18 °C (USDA 6b, RHS H7, Swedish zone 3), with no specific data available on heat and drought tolerance at present. |
| Horticultural recommendations |
Suited to beds, containers, specimen and cut-flower use; maintenance is moderate with occasional plant protection and deadheading; best presented as bush-trained plants with 3–5 strong framework canes, targeting premium container production. |
CLAUS DALBY™ combines exhibition-quality cream-white blooms, strong fragrance and bushy, container-suited structure in a predictable own-root form that supports long-lived, stable stocks; please contact us to align capacity and scheduling for your programme.
