Thursday 20 December 2012

Hydrangea macrophylla



Name: Hydrangea macrophylla
Common Name:
 big leaf hydrangea
Family:
 Hydrangeaceae
    x    Deciduous             Evergreen         x    Shrub            Ground Cover             Annual

        Coniferous             Tree             Climber             Herbaceous             Perennial

Habit
rounded
Hard. Zone
  usda 6
Mature Size
2m tall by 2.5m spread

x

Leaf: broadly ovate, coarsely toothed, glossy, dark green, 20cm long


Fall/Winter Color:

        Leaf Arr.    x    Opposite         Alternate         Whorled         Spiraled         Clustered         Basal

Flowers: flattened corymbs 15-20cm across of  a few sterile pink flowers and numerous blue or pink fertile flowers


Infl. flattened corymbs

Jan.     Feb.      March.      April.      May.      June.     ( July.      August.      Sept. )     Oct.      Nov.      Dec. (flowering period)
Water Use
High     Low

Soil
Rich     Lean     Well-drained x

Exposure
Sun  x   Semi-shade  x   Shade
Landscape uses:
specimen plants, group planting, shrub border


Limitations: gray mold, slugs, powdery mildew, rust, leaf spot
Other Features: floweer color depends on pH of soil because of ability to pick up aluminum ions, acidic soils produce blue pH over 6 produce pink

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