Isabelle Joerger – Hybrid tea rose – BARmarisa
Pastel blooms of Isabelle Joerger provide a refined, exhibition-grade hybrid tea profile that translates well into premium container production and cut-flower orientated assortments, while the own-root platform helps you build durable, renewable mother blocks with reduced replacement risk over time. The erect, well-branched habit with dense, dark green foliage supports a bush-trained release form with 3–5 strong canes, ideal for a 5–7 L container route aimed at exclusive finished products. Remontant, abundant second flowering and good colour retention underpin stable ornamental quality across the season, including when plants are moved through retailer pipelines. In own-root production, Year 1 focuses on roots, Year 2 on structural shoots, and by Year 3 the full flower-bed and specimen value is expressed, supporting thematic rose gardens and curated collections even under cooler UK conditions where winter and wind tolerance remain reliable.
Usage options
Finished-product ideas
- Premium 5–7 L exhibition hybrid tea – bush-trained own-root plants with 3–5 strong canes, finished in 5–7 L containers to showcase the large, high-centred pastel blooms and good colour retention – target: retail and specialist rose resellers.
- Garden cut-flower feature rose – positioned as a dual-purpose garden and cutting rose, supplied as an exclusive 5–7 L specimen with erect habit and solitary, high-centred flowers, ideal for customers seeking vase-quality stems – target: premium garden centres.
- Themed “pastel collection” SKU – integrated into pastel or feminine-name themed ranges, using uniform own-root container stock with stable structure and colour performance to support curated bench displays – target: branded retailer collections.
- Show-garden and project container – larger 40–50 litre planters with well-established own-root bushes, leveraging dense foliage and exhibition-like blooms to meet design briefs focused on flower quality and form – target: landscape contractors and public-realm suppliers.
- Collector and connoisseur line – limited-run, named-cultivar series using premium 5–7 L containers, emphasising the breeding origin and refined hybrid tea bloom for enthusiasts, supported by predictable own-root growth and moderate maintenance needs – target: mail-order and specialist nurseries.
Technical cultivar profile
| Parameter |
Data |
| Name and registration |
Hybrid tea rose, registered as BARmarisa, marketed as Isabelle Joerger Hybrid tea rose BARmarisa; commercial and collection group Hybrid tea rose; exhibition category cut flower and exhibition tea hybrid. |
| Origin and breeding |
Bred by René Barth at Roseraies Barth, France, with parentage unknown; bred and introduced in 2016, initially distributed by Roseraies Barth, forming part of a modern hybrid tea cut-flower style assortment. |
| Awards and recognition |
Not provided; no competition, collectors’ or global awards are listed for this cultivar, so selection should be based primarily on its technical profile and suitability to planned production routes. |
| Growth and structural characteristics |
Erect habit, 80–110 cm high with 50–70 cm spread; dense, dark green, glossy foliage and moderate prickliness; structure well suited to bush training with 3–5 framework canes for premium container and specimen use. |
| Flower morphology |
Semi-double blooms with 13–25 petals, large flower size and solitary, high-centred, pointed-budded form of classic cut-rose type; remontant with abundant second flowering supporting extended ornamental performance. |
| Colour data and phenology |
Pale creamy-yellow base with buttery-yellow centre; ARS YB, RHS 158D outer and 4C inner; warm lemon-yellow when newly opened, fading to cream-white with almost white margins and a faint yellow glow towards senescence. |
| Fragrance and aroma |
Mild but noticeable soft, sweet-fruity scent; fragrance is subtle rather than overpowering, adding refinement to the cut-flower and specimen profile without compromising display life or production handling. |
| Hip characteristics |
Hip set generally limited by double flowers and regular pruning; when present, hips are small, ellipsoidal, 10–14 mm diameter and orange-red, adding occasional autumn interest without being a dominant feature. |
| Resistance and winter hardiness |
Hardiness rated around -21 to -18 °C, RHS H7, Swedish Zon 3, USDA 6b; moderate tolerance to powdery mildew, black spot and rust; thrives in warm, sunny sites with moderate drought tolerance in established plants. |
| Horticultural recommendations |
Suited to flower beds, specimen and container planting, and cut-flower use; medium maintenance with occasional plant protection; recommended as bush-trained plants for a premium container path, ideally in 5–7 litre pots. |
Isabelle Joerger Hybrid tea rose BARmarisa offers refined pastel hybrid tea blooms, erect container-suited structure and reliable winter hardiness on a predictable own-root base, making it a considered choice for future production planning and capacity discussions.
