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‘Schlesingeri’ Red Maple

Acer rubrum ‘Schlesingeri’

Accession Number
The alpha-numeric value assigned to a plant when it is added to the living collection as a way of identifying it.
Accession Date
The year the plant’s accession number was assigned.
Common Name
The non-scientific name for the plant.
Scientific Name
The scientific name describes the species of an organism. The first word is the plant's scientific genus and the second is the specific epithet. This two-word binomial is sometimes followed by other taxonomic descriptors, including subspecies (denoted by "ssp."), variety (denoted by "var."), form (denoted by "f." or "forma"), and cultivar (denoted by single quotation marks).
Plant Family
The family to which the plant belongs.
Propagation Material
The first part (material code) describes the material used to create the plant. The most common codes are "SD" (seed), "EX" (existing plant), "PT" (plant), "CT" (cutting), "SC" (scion), "SG" (seedling), and "GR" (graft). The second part describes the lineage the plant is derived from. The last part describes the year of propagation.
Collection Data
The first part indicates provenance (place or source of origin) using a letter code ("W" = wild, "G" = garden, "Z" = indirect wild, "U" = uncertain). The second part lists the plant source. For wild-collected material, the collector, collection number, and country are given.
The location of the plant on the landscape.
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Acer rubrum ‘Schlesingeri’
‘Schlesingeri’ Red Maple

‘Schlesingeri’ red maple starts to color just after the summer heat has peaked, typically in mid-August, and is fully aflame in September.

Inaugural Arnold Arboretum of Harvard University director Charles Sprague Sargent initially found this prematurely-coloring red maple growing in the garden of Brookline, Massachusetts neighbor Barthold Schlesinger during the late 1800’s. Sargent brought dormant stem cuttings in for grafting to the Arboretum in winter 1888. After a successful propagation take, it was planted at the main Arborway entrance gate at the Arboretum, where this centenarian remains today across from the Hunnewell Building. Sargent shared propagules with the well-known Spath Nursery in Berlin, and it became available commercially in 1896. In 1951, Arboretum horticulturist Donald Wyman (1935-1970) distributed plants to 25 nurseries to promote this exceptional cultivar and affirm that its early coloring was genetic and not environmental.

‘Schlesingeri’ red maple begins its annual color transformation in mid-August, and by early to mid-September, is in full glory. Fall shades range from brilliant red to reddish-purple and last for a significant time – 20 to 30 days. Red inflorescences are borne on branches before leaves appear in spring, in March to April. Foliage is lobed, with toothed margins. Leaves are red at emergence, changing to dark green with gray undersides. Fruit, red two-winged samaras, are produced in autumn. Twigs also have a reddish hue, which becomes more pronounced as winter approaches. Red maple forms a large, upright spreading crown, and can reach 60 to 70 feet in height at maturity.

‘Schlesingeri’ can be obtained in the nursery trade; however, in some instances it may not be true to type.


Viewing this plant in-person? Look for these defining characteristics:

  • 1
    Vibrant early red fall color. William (Ned) Friedman
  • 2
    Flowers in early spring before leaves emerge. Suzanne Mrozak
  • 3
    Close up of stamens (male floral organ). William (Ned) Friedman
  • 4
    Oval to rounded crown of a young tree. William (Ned) Friedman

About Our Collection

Fun Facts

  • The original 1888 tree stands over 65 feet tall.

  • Cutting and grafting propagation of the centenarian has produced several replicates, which are planted throughout the Arboretum to serve as genetic backups.

  • The youngest 2014 clone is located next to the 1888 type specimen by the main Arborway entrance.


Living Specimens
Specimens Dead or Removed
First Addition
Most Recent Addition
Tallest Specimen

Living Specimens

Plant ID Accession Date Received As Origin Source

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