Scientific Name:
Acer rubrum
'Franksred'
Pronunciation:
AY-sur ROO-brum
Common Name:
Red Sunset maple
Family Name:
Sapindaceae
Plant Type:
Tree - deciduous
Key ID Features:
Vigorous cultivar with strong wood; leaves opposite, blades orbicular, most 8-13cm long x 6-11cm wide, with 3 major acute-tipped lobes, margins softly serrate, bases rounded, fall colour vibrant red; flowers clustered, appear before the leaves, red (hence the common name); samaras red, narrower angle compared to Norway maple. Winter ID: buds red, glabrous (terminal buds multiple, up 5mm long, lateral buds, opposite, up to 3mm long); flower buds more rounded, up to 4mm long, in clusters that circle twigs (gives the branches a bumpy look).
Habit:
Spreading, Upright
Form:
Oval - vertical
Texture:
Medium - coarse
Mature Height:
10 - 15m
Mature Spread:
4 - 5m
Growth Rate:
Moderate
Origin:
Canada - eastern, Garden origin, U.S. - northeast
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Acidic, Well-drained
Landscape Uses:
Fall interest, Shade tree, Street (boulevard tree)
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Palmate venation
Surfaces:
Pubescent
Shapes:
Obovate
Apices:
Acute
Bases:
Rounded
Margins:
Palmately lobed, Serrate
Additional Info:
Spectacular fall colour
Inflorescence Type:
Flowers clustered, Corymb-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Campanulate
Ovary Position:
Superior
Colour (petals):
Red, Dark-red
Flower Scent:
None
Flower Time at Peak:
Mar, Apr
Additional Info:
Female
Fruit Type:
Samara, Schizocarp
Fruit Colour:
Red, Brown
Fruiting Time:
May, Jun
Additional Info:
Schizocarps split into samara-like mericarps after dispersal
Bark Morphology:
Smooth, Moderately fissured
Bark or Stem Colour:
Grey
Leaf Bud Type:
Accessory (collateral), Ovoid
Leaf Scar Shape:
Crescent shaped
Maintenance:
Low
Pest Susceptibility:
Wilt (Pest resistant, Disease resistant)
Course(s):
- HORT 1155
Location(s):
- (BCE) Boulevard (Circular) Eastend : 13, 14, 51, 64, 65, 67, 68, 70, 72, 73, 76, 77, 78, 80, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98