Scientific Name:
Spiraea trilobata
Pronunciation:
spy-REE-uh try-loe-BAY-tuh
Common Name:
three lobe spirea
Family Name:
Rosaceae
Plant Type:
Shrub - deciduous
Key ID Features:
Leaves alternate, broadly ovate-orbicular, most blades 2-4cm long x 2-3cm wide, dark bluish-green, coarsely toothed, most 3-lobed (distinct lobes not always very obvious); flowers ~8mm wide, 5 white petals, in corymb-like cymes, May. Winter ID: twigs round, slightly ridged; buds opposite, ovoid; leaf scars raised, V-shaped; persistent fruit.
Habit:
Dense, Twiggy, Upright
Form:
Round
Texture:
Medium - fine
Mature Height:
0.7 - 1.3m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Slow
Origin:
Central / west Asia, S.E. Asia / Japan / China
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Landscape Uses:
Attract butterflies, Hedge row, Mixed shrub border, Spring interest
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Alternate
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Glabrous
Colour in Fall:
Yellow, Brown
Shapes:
Orbicular, Ovate
Apices:
Rounded
Bases:
Attenuate, Obtuse
Margins:
Double serrate, Pinnately lobed
Inflorescence Type:
Cyme, Corymb-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Showy, White
Flower Time at Peak:
May
Fruit Type:
Aggregate fruit, Follicle
Fruit Colour:
Dark-red, Brown
Fruiting Time:
Jun, Jul
Additional Info:
Not showy, Persistent
Bark Morphology:
Smooth, Prominent lenticels, Multi-stem trunk
Bark or Stem Colour:
Red, Brown
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
V-shaped
Maintenance:
Low
Pest Susceptibility:
(Pest resistant, Disease resistant, Deer resistant)
Course(s):
- HORT 1155
Location(s):
- (GAZ) GAZebo
- (GAZN) GAZebo North : q.5
- (MCC) Main Campus Courtyard : 689
- (ONE) Overpass North side East : 509
- (ONW) Overpass North side West
- (TFL) Turf Field Lab