Pimprenelle™ Groundcover DELdog – pharmaROSA® NEONATAL rooted cutting for professional mass planting
Groundcover production with Pimprenelle™ supports reliable, uniform project lines where you can build dense, bushy mass plantings from a predictable own-root base. The semi-double, cluster-flowered, medium-sized blooms deliver a distinctive bright yellow effect that lightens to ivory, giving evolving seasonal interest in project beds and edging. With H7 hardiness down to -21–-18 °C and resistant performance against powdery mildew and black spot, it provides stable structural coverage for UK nursery and landscape supply chains that must remain reliable even in exposed, wind-affected northern schemes. The good self-cleaning habit supports cleaner presentation and lower grooming requirements in finished product, while own-root material offers long-term regeneration, reduced replacement demand, and stable stands for nursery propagation beds and container grow-on. From 3–6‑month tray-rooted cuttings through Year 1 root establishment, Year 2 shoot build-up and Year 3 full ornamental value, Pimprenelle™ aligns well with project-mapped production calendars and wholesale logistics, giving you a flexible, scalable portfolio option for flower bed, edging, park and specimen use. Recommended for 1.5–2 L routes and, where extended landscape pre-growing is required, step-up into 40–50 litre range for ready-to-install, high-impact project planting across thematic rose gardens, collection displays and contractor-led public-realm projects.
Usage options
Finished-product ideas
- 1.5–2 L yellow groundcover line – uniform own-root shrubs with bright yellow, self-cleaning blooms for flower bed and edging use, optimised for fast bench turnover and direct project mass planting routes – landscape contractor channel.
- 40–50 L pre-grown park module – bushy, winter-hardy shrubs pre-grown in large containers for immediate effect in parks and institutional schemes, leveraging disease resistance and own-root longevity – public-realm supplier channel.
- Collection-grade Delbard block – verified-identity, own-root plants for Delbard-themed or cultivar collection beds, using medium pots for easy handling and long-term renewal capacity – specialist rose nursery and show-garden channel.
- Edging ribbon mix – colour-consistent yellow edging elements produced in 1.5–2 L for integration into mixed groundcover palettes, benefitting from fast coverage and moderate maintenance needs – project-serving wholesaler channel.
- Mass planting contract lot – large, uniform batches of pharmaROSA® NEONATAL-derived shrubs grown to dense, bush-trained form for framework planting in housing and commercial landscapes – integrator and framework-contractor channel.
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Groundcover shrub rose, registered as DELdog, traded as Pimprenelle™ Groundcover DELdog; approved ARS exhibition name Pimprenelle; belongs to the Ground cover commercial group. |
| Origin and breeding |
Bred by Georges Delbard, France, in 1995; introduced after 1996 by Pépinières & Roseraies Georges Delbard SA, with registration in 1996; parentage information has not been provided. |
| Awards and recognition |
Not provided; no specific competition, collector or lifetime awards are listed for this cultivar in the available data at present. |
| Growth and structural characteristics |
Bushy groundcover habit with 55–95 cm height and 40–75 cm spread; moderately dense, slightly glossy mid-green foliage and moderate thorniness give good coverage suitable for edging and park plantings. |
| Flower morphology |
Semi-double, flat, cluster-flowered blooms of medium size (1.5–2.75 in), carrying approximately 13–25 petals; remontant behaviour provides a plentiful second flowering flush during the season. |
| Colour data and phenology |
Bright yellow blooms with ARS DY, RHS 11B outer and 12A inner, opening from saturated lemon buds; colour lightens to buttery yellow and finally ivory, with only moderate colour retention over time. |
| Fragrance and aroma |
No noticeable fragrance; recorded as an unscented rose. Semi-double flowers offer only partial pollinator value, with limited stamen accessibility and only modest attraction in mixed plantings. |
| Hip characteristics |
Low overall hip formation expected; where present, hips are spherical, orange-red, around 7–11 mm in diameter, forming after self-cleaning flower drop in normal garden or landscape use. |
| Resistance and winter hardiness |
Rated H7, tolerating approximately -21 to -18 °C (USDA 6b, Swedish zone 3); shows resistance to powdery mildew and black spot, with moderate rust sensitivity; manages moderate heat and short dry spells. |
| Horticultural recommendations |
Suited to flower beds, edging, parks and specimen roles; medium maintenance with occasional pest and disease control; recommended as a uniform, dense, bush-trained finished product for project mass planting in 1.5–2 L containers. |
Pimprenelle™ Groundcover DELdog combines fast, dense coverage, winter-hardy, disease-resilient groundcover performance and long-lived, predictable own-root stands, making it a sound candidate for aligning project capacities and discussing forward programme volumes.
