Scientific Name: Cornus controversa
Common Name: giant dogwood
Family Name: Cornaceae
Origin: S.E. Asia / Japan / China
Hardiness Zone: Zone 5: (-29 to -23 °C)
Plant Type: Tree - deciduous
Mature Size: 10 - 15m x 10 - 15m (height x width)
Habit: Upright
Form: Oval - vertical, Round
Texture: Medium - coarse
Landscape Uses: Attract birds, Attract butterflies, Fall interest, Shade tree, Street (boulevard tree)
Exposure: Full sun, Part sun/part shade
Soil or Media: Acidic, Humus rich, Well-drained
Leaves: Simple, Alternate, Soft flexible, Heavily veined, Pinnate venation, Lustrous, Elliptic, Entire, Sinuate
Flowers: Cyme, White, Yellow, Jun-Jul
Fruit: Drupe, Blue, Black, Aug-Sep
Key ID Features:
Tiered branching; leaves alternate (most other dogwood tree species have opposite leaves), most ovate-elliptical, 8-15cm long x 2-4cm wide; inflorescence to 18cm wide with 4 large bracts in early summer; drupes about 6mm wide, turn purple-black. Winter ID: branches horizontal, wide-spreading; terminal buds oblong 8-10mm long with about 6 pointed outer scales; lateral buds ovoid, 1-5mm longl leaf scars alternate and raised.