Skip to content

Frank Jr.

Active

Acer rubrum L. Red maple · Ornamentals · bred by Warren Keith S.|Gresham, OR, US

also searched as: франк йр

Variety description

10 August 2026

The tree features a straight dominant central leader and a symmetrical narrow-pyramidal crown. A mature plant reaches a height of 12–15 meters and a width of 8–10 meters.

In summer, the leaves are glossy dark green. Flowering occurs in March-April before the leaves appear, with small red flowers.

The variety is adapted to urban conditions, resistant to heat, pests, and diseases, and tolerant to compacted soils. It prefers moist, fertile sites; growth slows down on alkaline soils, and the intensity of autumn coloration decreases.

Sources7
  • Loading…

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.

QZ

no record

Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

Also known as

breeder code PP16769

A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.

  • Frank Jr. primary QZ, US
  • Frank Jr AU, GB, QZ

The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.

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

Parties

Breeder
Warren Keith S.|Gresham, OR, US 4 Developed the variety
Applicant
Warren Keith S.|Gresham, OR, US 4 Submitted the application to the register
Rights holder
J. Frank Schmidt & Son Co. 30 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 № 11083834
Active
  1. Application filed 16 March 2005
  2. Registered 4 July 2006
  3. Currently active indefinite in the register

More 3 records protections in other jurisdictions are shown on the map above.

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

Found an error in the record?

The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.

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: Red maple

All 3 varieties of species

JFS KW78

Active

Acer rubrum L. · Red maple

Warren Keith S.

3 records

Acer rubrum L. · Red maple

Warren Keith S.

2 records

Nearby in the species list JFS KW78, WW Warren

Discussion: Frank Jr.

0 messages

Growing experience and notes on the entry. Comments are not part of the reference data and are not verified against primary sources.

Comments are open to signed-in readers. Sign in · Sign up