H20-02
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Hydrangea macrophylla (Thunb.) Ser. Bigleaf hydrangea · Ornamentals · bred by No information of breeder available for this variety
also searched as: никко блуе
10 August 2026
The shrub has a spreading, rounded shape, reaching a height of 1.2–1.5 m with a comparable crown width. The leaves are large, elliptical or ovate, bright green with a serrated edge.
Mophead-type inflorescences reach 12–25 cm in diameter. On acidic soils with pH 4.5–5.5, the flowers become intensely blue or indigo, on neutral and slightly alkaline ones — pink or lilac.
Flowering is prolonged, from June to September-October. There is conflicting data regarding the flowering type: on previous year's shoots or on both current and previous year's shoots together.
The variety belongs to USDA hardiness zone 6 (down to -23°C); in temperate climates, it requires covering or cultivation in containers. It prefers partial shade, protection from wind, and regular watering, and is characterized by relative disease resistance.
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
No information of breeder available for this variety
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Japan
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Lambert Söhne J.
Nearby in the species list NHS20B22, NHS20B32, NHS20B33, NHS20B41, NHS20B42, Nidu, Niedersachen, Nightingale, Nigra, Niijima-Gaku, Nikolaus Lambert, Ningbo, Nith Haiah, Nivalis, Nixe, Nizza, NOB-01, NOB-06, NOB 09, NOB 10