Scientific Name:
Aesculus
x
carnea
'Briotii'
Pronunciation:
ESS-kew-lus ex KAR-nee-uh
Common Name:
ruby horse chestnut, red horse chestnut
Family Name:
Sapindaceae
Plant Type:
Tree - deciduous
Key ID Features:
Leaves opposite, palmately compound, leaflets 5(-7) obovate, most central ones 15-20cm long x 8-10cm wide, rugose, margin double serrate; thryse 15-20cm long, florets many, red, 2-3cm long. Winter ID: buds large, red-brown, smooth (not as large or as sticky as horse chestnut).
Habit:
Spreading, Upright
Form:
Oval - horizontal, Round
Texture:
Coarse
Mature Height:
10 - 15m
Mature Spread:
10 - 15m
Growth Rate:
Fast
Origin:
Garden origin (A. hippocastanum x A. pavia)
Hardiness Rating:
Zone 7: (-18 to -12 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Shade tree, Specimen plant, Spring interest, Street (boulevard tree) (Caution: poisonous parts)
Additional Info:
Leaf Morphology:
Form:
Compound
Arrangement:
Opposite
Texture/Venation:
Heavily veined
Surfaces:
Glabrous, Lustrous, Rugose
Compound Leaf:
Digitate (palmate)
Colour in Summer:
Dark-green
Colour in Fall:
Yellow
Shapes:
Obovate
Apices:
Acute
Bases:
Cuneate
Margins:
Double serrate, Serrate
Inflorescence Type:
Thyrse, Floriferous, Panicle-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Funnelform
Ovary Position:
Superior
Colour (petals):
Showy, Pink, Dark-red
Flower Scent:
None
Flower Time at Peak:
May, Jun
Additional Info:
Actually a thyrse because the branches are cymose
Fruit Type:
Capsule, Aborted (hybrids) or absent
Fruit Colour:
Green, Brown
Fruiting Time:
Aug, Sep
Additional Info:
Fruit insignificant, Rarely fully forms, oblong, up to 5-6cm long x 3-4cm wide, stiff hairs, and contains 2-3 sterile seeds
Bark Morphology:
Lightly fissured
Bark or Stem Colour:
Grey, Brown
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
U-shaped
Maintenance:
Low
Pest Susceptibility:
(Disease resistant, Deer resistant)
