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Blue Danube

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Hydrangea macrophylla (Thunb.) Ser. Bigleaf hydrangea · Ornamentals · bred by No information of breeder available for this variety

also searched as: блуе данубе

Variety description

10 August 2026

The shrub is characterized by a dense, branched structure and upright shoots. The foliage is broad-oval, serrated, and dark green. The inflorescences are spherical in shape, with a diameter of 12 to 20 cm.

The flower color depends on the soil pH level: on acidic soils they turn blue, on alkaline and neutral soils — pink or lilac. The plant tolerates partial shade well and can be used in solitary and group plantings or container gardening.

The flowering period continues from June to October. The variety belongs to hardiness zone 6A (withstands temperatures down to -18 °C); in cold climates, it requires covering of flower buds for the winter.

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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.

active no record

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

Parties

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

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Same species

Other varieties: Bigleaf hydrangea

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Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Michael Dirr

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Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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FR
1 record

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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FR
1 record

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Shouji SAKAMOTO (JP)

DK FR
4 records

Nearby in the species list Bleu Bleu Vastérival, Blink, Bloedvink, Blue Altissima, Blue Angel, Blue Bird, Blue Bonnet, Blue Boy, Blue Buck, Blue China Boy, Blue Diamond, Blue Earth, Blue Fresh, Blue Fringe, Blue Haeven, Blue Lace, Blue Lagoon, Blue Mac, Blue Ortu, Blue Pac

Discussion: Blue Danube

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