H20-02
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Hydrangea macrophylla (Thunb.) Ser. Bigleaf hydrangea · Ornamentals · bred by Information regarding the breeder received in the contribution to CPVO :Wädenswil
also searched as: ротдроссел
10 August 2026
The variety belongs to the Lacecap group with inflorescences up to 15–20 cm in diameter, consisting of an outer circle of large sterile flowers and a central part of small fertile flowers. The plant's stems often have a purple hue; the foliage is dark green, slightly glossy with pronounced venation.
On neutral and alkaline soils, the flowers have a deep red or wine-red shade; on acidic soils, they are purple-violet or blue-lavender. The plant is a dense deciduous shrub 1.2–1.7 meters tall, characterized by high stem strength.
Flowering lasts from mid-summer to autumn. The variety is winter-hardy (USDA zones 6–9) and is distinguished by viability and resistance to diseases when agrotechnical rules are followed.
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.
Records are sourced from official registry publications. Data sources and legal status
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Same species
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Michael Dirr
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Kolk Jacobus W. P.|1187 NK Amstelveen, NL
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Draps-Dom
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Dienemann H.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
No information of breeder available for this variety
Nearby in the species list Rosebelle, Rosenburg, Rosengarten, Rosenkavalier, Rosenkränzer, Roseo-Marginata, Rosewarne Lace, Roshidori, Rosita, Rotbart, Rotenburg, Rotenfels, Roter Teller, Roter Zwerg, Rotkäppchen, Rotkehlchen, Rotschwanz, Rotspon, Rouget de Lisle, Royal