Rose Supreme

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Hydrangea macrophylla (Thunb.) Ser. Bigleaf hydrangea · Ornamentals · bred by Information regarding the breeder received in the contribution to CPVO :Swanson

also searched as: росе супреме

Variety description

10 August 2026

The variety is intended for forcing for holidays and ornamental landscaping. Under forced cultivation, the flowering period is about 14 weeks, provided that the temperature is maintained between 12°C and 15°C.

The plant forms globular inflorescences, the color of which changes depending on the soil acidity: from pink shades in an alkaline environment to blue in an acidic one. In the landscape, the bush reaches 1.2–2 meters in height and width.

The variety belongs to USDA hardiness zones 7–10 and is considered reliable in cultivation.

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Countries of admission

1 jurisdiction

Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.

IS FI NO SE EE IE GB DK LV LT NL DE PL BY PT ES FR BE CZ SK UA RU LU CH AT HU MD IT SI HR RS RO MT GR BG CY

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Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder: Information regarding the breeder received in the contribution to CPVO :Swanson 1 Developed the variety

Records are sourced from official registry publications. Data sources and legal status

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