Sunstar ® Bedding rose KORsteimm – pharmaROSA® NEONATAL own-root cutting
Floribunda production with Sunstar® offers a compact, bushy and upright plant ideal for bedding and container programmes where a reliable repeat-flowering pattern is important for season-long sales. The creamy-yellow flower colour with good cluster presentation supports retail bench impact in standard 2–3 L containers, aligning with a standard finished-product route and a “reliable garden performance” promise to end customers. Own-root pharmaROSA® NEONATAL material gives a stable base for nursery propagation beds and container grow-on, supporting predictable, homogeneous stands for nursery and wholesale supply, with long-term regenerative capacity and low replacement in collection and project plantings. In UK production systems and public-realm supply chains, its H7 hardiness and Zon 3 rating provide dependable winter performance even in colder, wind-exposed northern sites, allowing secure planning of flower-bed and container lines. The development arc from strong roots in year one, to structural shoots in year two, and full ornamental expression by year three suits nurseries scheduling volumes for thematic rose gardens, collection projects and retail-facing assortments. With moderate maintenance requirements and flexible use as a bedding, specimen or cut-flower shrub, Sunstar® fits continuous propagation, integrator networks and stock-building strategies across NEONATAL trays.
Usage options
Finished-product ideas
- Sunstar 2 L bedding block – High-density 2 L standard containers from NEONATAL bush-trained cuttings, leveraging compact habit and cluster flowering for uniform retail benches – target audience/channel: supermarket and DIY-chain retail programmes.
- Sunstar 3 L feature floribunda – Lower-density 3 L pots emphasising larger plant size and repeat flowering for reliable garden performance messaging – target audience/channel: independent garden centres and specialist rose retailers.
- Sunstar 50 L terrace specimen – Selected plants stepped up from standard containers into 40–50 L tubs as long-lived own-root specimens with stable colour for patios and entrances – target audience/channel: landscapers and project-based wholesalers.
- Sunstar collection-grade bed lines – Uniform 2–3 L plants used to build ADR- and Gold Standard-backed blocks for thematic collections and show gardens – target audience/channel: public gardens, heritage sites and rosarium operators.
- Sunstar dual-use cut-and-bed crop – Standard container production managed for both bedding sale and side-line cut-flower harvest from clustered stems, supported by own-root regeneration – target audience/channel: mixed ornamental growers and regional wholesalers.
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Floribunda bedding rose, registered as KORsteimm, traded as Sunstar® Bedding rose KORsteimm; ARS exhibition name Sunstar, positioned as a standard finished product with reliable garden performance. |
| Origin and breeding |
Bred in Germany in 1997 by Wilhelm Kordes III from ‘Bernstein-Rose’ × unknown seedling; introduced after 2008 by W. Kordes’ Söhne, with US registration in 2008 (US PP 20 700). |
| Awards and recognition |
Significant awards include Monza bronze medal (2006), ADR certification (Germany, 2007), Kortrijk silver medal (2009), Dublin Rose of the Year (2009), UK Gold Standard gold (2010) and SNHF Grand Prix de la Rose (France, 2011). |
| Growth and structural characteristics |
Bushy, upright shrub to 70–95 cm high and 40–60 cm spread, with dense, glossy mid-green foliage (RHS 143A) and moderate prickliness; self-cleaning is moderate so some deadheading is required in production and display. |
| Flower morphology |
Floribunda-type clusters of large, double, cup-shaped flowers (2.75–3.95 in) with 26–39 petals; repeat flowering is good, with an abundant second flush supporting longer sales windows in standard container programmes. |
| Colour data and phenology |
Cream-yellow overall tone, newly opened flowers soft lemon-yellow with creamy centres; RHS 11C outer and 8C inner; colour may fade in strong sun to straw-yellow, remaining more vivid in cooler conditions, with otherwise uniform presentation. |
| Fragrance and aroma |
Very faint, subtle scent with no detailed fragrance character recorded; not optimised for pollinator attraction due to fully double form and limited stamen access, making it primarily a visual ornamental choice. |
| Hip characteristics |
Produces moderately abundant spherical hips, 8–12 mm in diameter, in an orange-red colour; hips can add some seasonal interest but are secondary to the cultivar’s primary bedding and floribunda shrub role. |
| Resistance and winter hardiness |
Hardy to approximately –21 to –18 °C (RHS H7, Swedish Zone 3, USDA 6b); heat tolerance is moderate, needing regular irrigation in drought; disease resistance is moderate with susceptibility to black spot and moderate reaction to powdery mildew and rust. |
| Horticultural recommendations |
Recommended for flower beds, container production, specimen use and some cut-flower harvesting; moderate maintenance with occasional plant protection; best via bush-trained plants in standard containers, targeting 2–3 L pots for retail and project supply. |
Sunstar ® Bedding rose KORsteimm offers compact, award-backed floribunda performance with reliable repeat flowering, while own-root NEONATAL material ensures regenerative, predictable stands for professional programmes; please contact us to align capacity and scheduling.
