KATHARINA ZEIMET® – white bedding polyantha rose – pharmaROSA® NEONATAL
For nurseries building reliable project volumes, KATHARINA ZEIMET® offers a compact, uniform polyantha base ideal for dense flowerbed and border concepts, as own-root pharmaROSA® NEONATAL material supports predictable, renewable stands for long-term contract planting. Its bushy habit, dense, glossy dark foliage and naturally clustered snow-white pompon blooms create fast, even coverage that fits mass planting schemes and high-density container lines. The semi-double, well self-cleaning sprays reduce grooming on 1.5–2 L production, making it practical for project-focused ranges where medium maintenance and occasional plant protection are acceptable. With H7 hardiness ensuring dependable performance in colder UK regions and exposed northern sites described as offering steady winter and wind tolerance in demanding schemes, own-root propagation gives a long-lived, regenerating base that tolerates production loads. Remontant flowering with an abundant second flush supports extended visual impact in public-realm and park projects, while the mild, softly sweet fragrance and historic 1901 Lambert origin strengthen its role in thematic and collection plantings. Across nursery networks, the uniform, dense bush-trained finished product route allows efficient scheduling from tray-rooted cuttings through to project-ready containers, following a natural progression of root establishment in the first year, stronger shoot structure in the second, and full ornamental expression from the third year onward.
Usage options
Finished-product ideas
- Project white bedding module – Uniform, dense, bush-trained 1.5–2 L plants with compact, bushy habit and fast coverage, tailored to project mass planting specifications for municipal beds and borders – landscape contractor / project-serving wholesaler
- Heritage polyantha collection line – Own-root containers highlighting the 1901 Lambert origin with pure white, clustered pompon blooms, positioned for thematic and show gardens requiring traceable, stable identity – specialist rose collections and public gardens
- Remontant park border unit – 1.5–2 L finished plants selected for remontant, abundant second flowering and good self-cleaning to support extended, lower-maintenance displays in park and institutional borders – public-realm and park maintenance suppliers
- White structure block for colour schemes – Consistent, solid snow-white flowering units produced on NEONATAL own roots for reliable colour blocks within coordinated bedding and border assortments – nursery and integrator programmes
- Entrance feature container upgrade – Vigorous, compact plants stepped on from 1.5–2 L into 40–50 litre containers, using dense foliage and snow-white sprays for long-term formal accents at corporate and civic entrances – corporate landscape service providers
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
KATHARINA ZEIMET® is a polyantha bedding rose within the bed rose commercial group; American Rose Society exhibition name Katharina Zeimet, unregistered cultivar for formal registration purposes. |
| Origin and breeding |
Bred by Peter Lambert, Peter Lambert Nursery (Lambert & Söhne, Trier, Germany); cross of ‘Étoile de Mai’ × ‘Marie Pavié’; introduced in Germany in 1901 and verified for authenticity in 2025. |
| Awards and recognition |
Recognised in multiple rose society shows as Polyantha Spray: Syracuse Rose Society (1999–2001), Gateway Rose Society (2000), and Greenville & Greer Rose Society (1999), reflecting consistent exhibition performance. |
| Growth and structural characteristics |
Bushy, compact plants 50–75 cm high with 65–95 cm spread, dense dark green glossy foliage and slightly thorny shoots; structure lends itself to uniform, dense, bush-trained finished products and cohesive mass plantings. |
| Flower morphology |
Sized S (0.5–1.5 in) semi-double blooms with 13–25 petals, forming ball to pompon shapes in clustered inflorescences; remontant with abundant second flowering and good self-cleaning as most spent blooms drop naturally. |
| Colour data and phenology |
Uniform pure white flowers, ARS code W, RHS 155C outer and 155D inner; colour remains solid snow-white, only slightly creamy or edged brown under strong sun, giving stable visual impact over the flowering period. |
| Fragrance and aroma |
Mild, softly sweet scent that is understated rather than dominant; semi-double flowers and dense clusters offer at most partial pollinator friendliness, with limited access to stamens and modest wildlife attraction value. |
| Hip characteristics |
Occasional very small hips with diameters up to 4 mm may form; hips are not a key ornamental or production feature and generally do not influence maintenance or visual effect in bedding and border use. |
| Resistance and winter hardiness |
Hardy to approximately -21 to -18 °C (H7, Swedish zone 3, USDA 6b), suitable for colder UK regions; moderate resistance to black spot, powdery mildew and rust, heat-tolerant with medium drought tolerance requiring watering in dry spells. |
| Horticultural recommendations |
Recommended for flowerbeds, borders, containers and park plantings; medium maintenance with occasional plant protection; suited to project mass planting via 1.5–2 L, uniform, dense, bush-trained finished products sourced as own-root NEONATAL cuttings. |
KATHARINA ZEIMET® combines compact bushy structure, fast uniform coverage and pure white clustered flowering on a stable own-root base, offering predictable, regenerating stands for project mass planting; please contact us to coordinate volumes and scheduling.
