youmefour

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Hydrangea macrophylla (Thunb.) Ser. Bigleaf hydrangea · Ornamentals · bred by Ryoji Irie

also searched as: ёумефоур

Variety description

10 August 2026

The variety «youmefour» (trade name Passion, also known as «Rie 04») is part of the Japanese «You & Me» series. The shrub is characterized by its compactness and reaches a height of about 125 cm after 10 years of growth. The plant's shoots are sturdy, which maintains a good shrub shape.

The inflorescences are double; when opening, they resemble lace-like structures, but as they bloom, they become dense and fully double. The coloration changes depending on soil acidity: from smoky-blue shades in acidic environments to saturated pink in neutral or alkaline ones.

The plant is remontant and is capable of blooming on both the previous year's and current year's shoots. The variety is suitable for single or group plantings in the open field, as well as for container 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

active no record

Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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

Breeder: Ryoji Irie 50 Developed the variety
Applicant: Ryoji Irie 50 Submitted the application to the register
Rights holder: Ryoji Irie 50 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.

European Union № 20031015

Active

Application filed 19 May 2003
Registered —
Entry closed 25 September 2006

More 2 records protections in other jurisdictions are shown on the map above.

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

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Breeder

Ryoji Irie

breeder code RIE04

All 50 varieties of company

Registry records

Total records: 4
Jurisdictions shown: 1
Not yet disclosed: 2
First registration: 2009

Same species