Birthe Kjaer Renaissance® POUlren033 – pharmaROSA® NEONATAL rooted cutting
Premium own-root pharmaROSA® NEONATAL material of Birthe Kjaer Renaissance® POUlren033 gives You a resilient base for exclusive, red romantic shrub production, with tray-grown, 3–6‑month cuttings supporting planned volume flows into 5–7 L premium containers and beyond. Its bushy, upright habit, dense glossy foliage and large double blooms deliver the flower quality and nostalgic form that retail and reseller partners expect from an exclusive finished product, while own-root longevity supports low replacement and predictable capacity over multi-year cropping. Well-suited to UK nursery networks serving public and private projects, it performs reliably even in colder, exposed sites with good winter resilience and wind tolerance in northern regions, and can be used as a stable collection element within thematic or Renaissance-style rose ranges, moving from root establishment in year one to structural frame in year two and full ornamental performance by year three.
Usage options
Finished-product ideas
- Premium 5–7 L Renaissance shrub – Own-root, bush-trained plants finished in 5–7 L containers highlight the dense foliage and large, double red blooms for a clearly exclusive romantic shrub SKU – target audience/channel: retail / reseller.
- Large patio specimen 40–50 L – NEONATAL material grown on into 40–50 L tubs creates long-lived, upright specimens with repeat flowering and fragrance for patios and entrances – target audience/channel: garden centres and landscape contractors.
- Renaissance collection trio – Coordinated three-cultivar Renaissance set including Birthe Kjaer in 5–7 L pots leverages its colour and form as the red anchor in a themed romantic range – target audience/channel: branding-focused nurseries and premium retailers.
- Park and estate feature line – Uniform own-root bushes supplied in 5–7 L or step-up containers provide bed-ready units with good self-cleaning and winter hardiness for parks and estates – target audience/channel: public-realm and estate suppliers.
- Cut-and-garden dual-purpose shrub – Marketed as a shrub that provides both garden presence and scented stems for cutting, using bush-trained NEONATAL stock to stabilise stem quality – target audience/channel: specialist rose nurseries and mail-order partners.
Technical cultivar profile
| Parameter | Data |
| Name and registration |
Birthe Kjaer Renaissance® POUlren033 is a shrub/nostalgia rose from the Renaissance collection, with registered cultivar name POUlren033 and premium silver internal quality rating for professional production. |
| Origin and breeding |
Bred in Denmark in 2019 by Mogens Nyegaard Olesen of Poulsen Roser A/S, from unnamed seedling parents; introduced after 2020 via Poulsen Roser A/S, with EU CPVO registration in 2020 and US PP in 2022. |
| Awards and recognition |
Holds a Bronze Medal from the Japan Rose Concours in Tokyo (2021), supporting its positioning as an exclusive, flower-quality driven cultivar suitable for premium ornamental assortments and branded ranges. |
| Growth and structural characteristics |
Bushy, upright shrub reaching about 100–140 cm in height and 70–110 cm spread, with dense, mid-green glossy foliage (RHS 137A) and moderate prickliness; spent flowers self-clean well as most fall naturally. |
| Flower morphology |
Produces large, double, rosette-shaped blooms (approximately 2.75–3.95 inches) with 26–39 petals, typically in clusters of three to five per stem; remontant habit with an abundant second flowering phase under suitable culture. |
| Colour data and phenology |
Uniform rich mid-red with velvety texture (RHS 46A outer, 46B inner); colour fades only slightly towards raspberry red while remaining clear, with buds deep mid-red and a harmoniously toned open bloom that holds presentation well. |
| Fragrance and aroma |
Fragrance is strongly scented and long-lasting, though detailed descriptive notes are not provided; the double bloom form is primarily ornamental, with stamens largely concealed and limited pollinator attraction in normal garden use. |
| Hip characteristics |
Hips are generally sparse due to the full double flowers; where present they are small, about 8–12 mm in diameter, globose, and red (RHS 53A), contributing minimally to overall ornamental effect and seed set. |
| Resistance and winter hardiness |
Moderate resistance to powdery mildew, black spot and rust; winter hardy to approximately −21 to −18 °C (RHS H7, Swedish Zone 3, USDA 6b), with heat tolerance reported to AHS heat zone 7 and no specific drought data available. |
| Horticultural recommendations |
Recommended for flower beds, parks, specimen use and cut flower production; medium maintenance with occasional pest and disease control, best supplied as bush-trained plants with 3–5 strong framework canes via a premium container route. |
Birthe Kjaer Renaissance® POUlren033 as pharmaROSA® NEONATAL own-root stock combines premium flower quality, reliable self-cleaning and durable, predictable stands, offering a secure basis for aligning volumes and timelines in your shrub rose programme.