Acer x freemanii ‘Sienna’ – Sienna Glen® Maple


Botanical Name: Acer x freemanii ‘Sienna’

Alternate Name: Sienna Glen® Freeman Maple

The Sienna Glen® Maple (Acer freemanii ‘Sienna’) is a moderately fast-growing deciduous maple. It grows to a height of 40-50 feet and a width of 35-40 feet. It has a strong, dense, and upright branching structure, with a uniform pyramidal to oval shape. It is one of the hardiest Freeman Maple hybrids, grown for its reliable blaze of fall color and its adaptability to different environments.

The Freeman Maple cultivars are hybrids which were bred from crossing the Red Maple (Acer rubrum) with the Silver Maple (Acer saccharum). The resulting hybrid is a maple that has best qualities from both trees – reliable structure, sturdy form, and dazzling fall color from the Red Maple, and adaptability and a faster growth rate from the Silver Maple.

The leaves of the Sienna Glenn® are a handsome dark green with a flash of silver on the undersides. This hybrid blooms with a modest display of red flowers in the spring before the leaves fill in. The samaras that follow are sparse and not a good source of food for birds. However, birds can nest in its dense branches and feast on insects. The leaves provide a bright red display in the fall, with tones of yellow, orange, and purple.

The Sienna Glen® Maple is highly adaptable to different soil types and is suited to many different environmental conditions. This tree is tolerant of urban pollution, salt, alkaline soil, flooding, and drought. For this reason, it makes an excellent street tree, lining larger boulevards.

Product Dimensions

The purchased tree will be within the ranges below. If you require a specific size, please call us at (503)585-8337
Please review Product shipping dimensions to ensure size of vehicle used for pickup of tree is sized correctly. Click here for more information.
Caliper Range p
1 3/4"-3"
Height Range p



Flower Color

Flowering Time

Fall Color

, , ,

Growth Rate



, , , , ,

USDA Zones

, , , ,

Mature Height

Mature Width




Height: 40-50 ft.
Width: 35-40 ft.
Shape: Oval/Pyramidal
Flower Color: Red
Flowering Time: April
Fall Color: Yellow, Orange, Red, and Purple
Features: Spectacular fall display, symmetrical pyramidal form
Exposure: Full Sun to Part Shade
Watering: Moderate & Regular
Soil: Prefers moist, acidic, well drained soil, but adaptable to many types of soil
Growth Rate: Moderate-Fast
USDA Zones: 3-7
Uses: Shade tree, lawn tree, accent tree, park tree, lining parkways, street tree
Similar Trees: Pacific Sunset® Maple (Acer x truncatum ‘Warrenred’), Autumn Blaze® Maple (Acer x freemanii ‘Jeffersred’), Celebration® Maple (Acer x freemanii ‘Celzam’)

Call Now Button