Hydrangea macrophylla – Hydrangea

Hydrangea macrophylla – Hydrangea, is a most handsome plant with large domed heads of flowers in pink, red or blue. The leaves are deeply veined, heart-shaped and of a rich green colour.

Where to position: In good light but not full sun. If leaves curl place in a more shaded spot. It objects to draughts.

Watering requirements: Ensure good drainage and water copiously in growing season. Soil must not dry out. Mist-spray leaves daily.

Hydrangea macrophylla

General care: Keep in cool place. Support stems if weight of blooms tends to splay the plant. After flowering, cut back a little and plunge pot into soil, out of doors if possible. Bring plant indoors before frost.

Rest: In winter, reduce watering and keep in cool, frost-free position.

When it looks sick:

  • Leaves yellow : Plant likes plenty of water, but must have good drainage.
  • Leaves look tired and wilt : Lack of water causes this. Water and give a mist spray. Recovery will be rapid if it is kept out of strong light.
  • In blue varieties the flowers become mauvish, then pink : Add a good sprinkle of aluminium sulphate to the compost.

Temperatures:

All year round 5-20 °C (41-71 F)

Soil: A soil-less compost.

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