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HYMMAD I

Active

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

also searched as: химмад и

Variety description

10 August 2026

The HYMMAD I variety is a deciduous shrub with a rounded crown shape, reaching a height and width of 1.2–1.5 m. The plant has glossy dark green slightly wrinkled leaves and strong stems capable of holding heavy inflorescences in an upright position.

The inflorescences have a spherical shape and a pure white color, which is maintained regardless of soil composition. As the flowers age, they acquire a greenish tint, while the white sepals are not prone to spotting or turning pink. The variety demonstrates high resistance to powdery mildew and is suitable for USDA hardiness zones 7a–9b.

Sources5
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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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

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

Parties

Applicant
Dirr Michael A.|Bogart, GA, US 12 Submitted the application to the register
Rights holder
University of Georgia Research Foundation, Inc.| GA, US Holds the rights to the variety

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

United States of America № 11348515
Active
  1. Application filed 6 February 2006
  2. Registered 11 December 2007
  3. Currently active indefinite in the register

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

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

Same species

Other varieties: Bigleaf hydrangea

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Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :HBA B.V.

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HYDone

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Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Fotinos P.

FR
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Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Dirr M.

FR
2 records

Nearby in the species list Hoso-Hime-Ajisai, Hovaria, Howaito Daiyamondo, Huakaifugui, Hugh, Hughs Love, Hulk, Hyakunennokoi, Hycativ, HYDone, HYMMAD II, HYMMAD III, HYPIPRO, Iberg, Ice Blue, ICH10162B, Idéal, Idole, Ijsvogel, Immaculata

Discussion: HYMMAD I

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