Marmo Freeman's Maple - Acer x freemanii 'Marmo'
Family Aceraceae  Height: 45-70' Spread: 35-40'
Habit / Form: Uniform, upright to columnar Growth Rate: Fast / Zone: 4
An excellent shade tree derived from a hybrid cross of red and silver maples. [2]
[Tree Encyclopedia Graphics]  [Trees Table of Contents]

Cultural Requirements: Prefers full sun; grows in a wide range of soil conditions; pH adaptable and drought tolerant.

Ornamental characteristics: A hybrid of silver and red maple with a strong central leader and excellent branching habit. Fall color is an interesting mottled blend of red and green to burgundy, and yellow. Uses in the Landscape: Excellent in street tree plantings or as a large specimen tree, especially where a more narrow, upright habit is required. A good alternative to silver maple and red maple in heavy clay soils.

Freeman's maple grows to 21 meters (70 feet) with half that distance in spread.  It has a uniform, upright-oval habit with a strong central leader. Branch structure and strength of the overqall plant has proven superior to Silver Maple. No seed is produced. [2]

References

1. Marmo Freeman's Maple, Morton Arboretum acc. 58-2003*2, photographed May 31, 2007 by Bruce Marlin

2. Chicagoland Grows Inc., Plant Release Bulletin #6, "Marmo Freeman's Maple - Acer x freemanii 'Marmo'" (.pdf)