Description
Sienna Glen Maple
Acer x freemanii ‘Sienna’
The Sienna Glen Maple tree is a naturally occurring hybrid found on an abandoned farmstead in Lake Elmo, Minnesota. Its distinct, upright, pyramidal growth habit, which is readily apparent as a young tree, grows and becomes a broad pyramid when mature. The Sienna Glen exhibits vigorous growth yet withstands strong winds. The branches are borne more closely together along the trunk (than those of Autumn Blaze) and are finer and more delicate, yet the wood is harder and shorter and exhibit less drooping. The smaller, fine textured green leaves are dark green with a silvery underside and turn a variable mix of yellow and orange with a pinkish tinge at the highest part of the crown. As the fall color finishes, it turns a burnt orange. This beauty tolerates higher soil pH unlike Autumn Blaze, not exhibiting any chlorosis. Hardiness zone 4 (testing done in zone 3). Mature growth is around 60′ tall x 40′ wide.
Height: 15 m
Crown: pyramidal to broad pyramidal, dark, dense crown
Bark and branches: smooth, grey-brown
Leaf: 3 to 5 lobes, shiny, bright green with light red stem, 8-10 cm
Autumn color: orange, red
Flowers: reddish flower corymbs, female flowers, March/April
Fruits: single seeds, winged, always in pairs, few or entirely absent,
fruitless cultivar
Spines/thorns: none
Toxicity: non-toxic (usually)
Soil type: any, but not too limy
Paving: tolerates paving
Winter hardiness zone: 4 (-34,4 to -28,9 °C)
Wind resistance: good
Fauna tree: valuable for butterflies
Application: avenues and broad streets, parks, squares, theme parks, cemeteries, large gardens
Sienna Glen Maple
Acer x freemanii 'Sienna'
The Sienna Glen Maple tree is a naturally occurring hybrid found on an abandoned farmstead in Lake Elmo, Minnesota. Its distinct, upright, pyramidal growth habit, which is readily apparent as a young tree, grows and becomes a broad pyramid when mature. The Sienna Glen exhibits vigorous growth yet withstands strong winds. The branches are borne more closely together along the trunk (than those of Autumn Blaze) and are finer and more delicate, yet the wood is harder and shorter and exhibit less drooping. The smaller, fine textured green leaves are dark green with a silvery underside and turn a variable mix of yellow and orange with a pinkish tinge at the highest part of the crown. As the fall color finishes, it turns a burnt orange. This beauty tolerates higher soil pH unlike Autumn Blaze, not exhibiting any chlorosis. Hardiness zone 4 (testing done in zone 3). Mature growth is around 60' tall x 40' wide.
Height: 15 m
Crown: pyramidal to broad pyramidal, dark, dense crown
Bark and branches: smooth, grey-brown
Leaf: 3 to 5 lobes, shiny, bright green with light red stem, 8-10 cm
Autumn color: orange, red
Flowers: reddish flower corymbs, female flowers, March/April
Fruits: single seeds, winged, always in pairs, few or entirely absent,
fruitless cultivar
Spines/thorns: none
Toxicity: non-toxic (usually)
Soil type: any, but not too limy
Paving: tolerates paving
Winter hardiness zone: 4 (-34,4 to -28,9 °C)
Wind resistance: good
Fauna tree: valuable for butterflies
Application: avenues and broad streets, parks, squares, theme parks, cemeteries, large gardens
Greenspire Linden | Tilia cordata 'Greenspire'
Height: 50 feet
Spread: 35 feet
Sunlight:
Hardiness Zone: 4a
Other Names: Littleleaf Linden,
Description: A magnificent shade tree with a strong, spire-like shape throughout its life; fragrant yellow flowers in early summer when few trees bloom; very tidy and low maintenance, adaptable, makes an excellent lawn or street specimen, great by a pool or deck
Ornamental Features
Greenspire Linden features subtle clusters of fragrant yellow flowers with tan bracts hanging below the branches in early summer. It has dark green foliage throughout the season. The heart-shaped leaves turn an outstanding gold in the fall. The fruit is not ornamentally significant.
Landscape Attributes
Greenspire Linden is a dense deciduous tree with a strong central leader and a distinctive and refined pyramidal form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.
This is a high maintenance tree that will require regular care and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. It is a good choice for attracting bees to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Insects
Greenspire Linden is recommended for the following landscape applications;
Shade
Vertical Accent
Planting & Growing Greenspire Linden will grow to be about 50 feet tall at maturity, with a spread of 35 feet. It has a high canopy with a typical clearance of 6 feet from the ground, and should not be planted underneath power lines. As it matures, the lower branches of this tree can be strategically removed to create a high enough canopy to support unobstructed human traffic underneath. It grows at a medium rate, and under ideal conditions can be expected to live for 70 years or more.
This tree should only be grown in full sunlight. It is very adaptable to both dry and moist locations, and should do just fine under average home landscape conditions. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selected variety of a species not originally from North America.
St Croix™ American Elm
Quercus macrocarpa x robur
Heritage English Oak will grow to be about 70 feet tall at maturity, with a spread of 50 feet. It has a high canopy with a typical clearance of 6 feet from the ground and should not be planted underneath power lines. As it matures, the lower branches of this tree can be strategically removed to create a high enough canopy to support unobstructed human traffic underneath. It grows at a slow rate, and under ideal conditions can be expected to live to a ripe old age of 300 years or more; think of this as a heritage tree for future generations!
Firefall™ Maple
Acer x freemanii 'Firefall'
Firefall™ has an upright-oval form with good branch angles. This selection is male and therefore does not produce nuisance seeds. The foliage is an attractive medium green throughout the summer. Fall color is bright orange to scarlet and develops fairly early. This is a distinct advantage over some existing Freeman maple cultivars that color later and often do not develop much color in northern regions before freezing temperatures cause the foliage tomdrop. University of Minnesota introduction.
Acer × freemanii 'Jeffersred' AUTUMN BLAZE
Common Name: Freeman maple | Type: Tree
Family: Sapindaceae | Zone: 3 to 8
Height: 40.00 to 55.00 feet | Spread: 30.00 to 40.00 feet
Bloom Time: Rarely flowers | Bloom Description: Greenish-yellow to red
Sun: Full sun to part shade | Water: Medium to wet
Maintenance: Low | Suggested Use: Shade Tree, Street Tree, Rain Garden
Leaf: Good Fall | Tolerate: Wet Soil
Culture
Easily grown in average, medium to wet, well-drained soils in full sun to part shade. Prefers moist, acidic soils with good drainage. Established trees have some tolerance for drought conditions.
Noteworthy Characteristics
Acer x freemanii, commonly called Freeman maple, is a hybrid of red maple (A. rubrum) and silver maple (A. saccharinum). The Freeman maple cultivars commonly sold in commerce today reportedly combine some of the best features of both parents, namely, solid structure, attractive form and showy fall color (from red maple) and adaptability and rapid growth (from silver maple). Oliver M. Freeman of the National Arboretum made the first controlled crosses between red maple and silver maple in 1933. Edward Murray named this hybrid cross in 1969 in honor of Oliver M. Freeman. Notwithstanding the foregoing, crosses between red and silver maples occur not only by controlled propagation but also naturally in the wild. It is sometimes difficult to identify a Freeman hybrid because of the complexity of crosses and backcrosses that may occur.
Cultivars are sometimes listed for sale by nurseries under Acer rubrum instead of Acer x freemanii.
Genus name is the Latin name for a maple tree.
Specific epithet and common name honors Oliver Freeman who first grew A. x freemani at the U. S. National Arboretum in 1933.
‘Jeffersred’, sold under the trade name of AUTUMN BLAZE, is an older cultivar that was discovered by nurseryman Glenn Jeffers in the late 1960s. This is an upright, fast-growing, deciduous tree that will typically grow 40-55’ tall with ascending branching and a dense, broad-oval crown. Each medium green leaf is deeply cut with five pointed lobes. As the trade name suggests, the foliage turns into an autumn blaze of orange-red to scarlet-red fall color. Flowers and fruit for this hybrid are very sparse. U.S. Plant Patent PP04,864 issued July 6, 1982.
Problems
No serious insect or disease problems. Young plants susceptible to leafhoppers and scale. Borers.
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