HYDRANGEA

Commonly known as Hortensia

All 2 year old plants. Hydrangeas flower pink or red on an alkaline (lime) soil. They flower blue or purple on an acid (peaty) soil. White varieties remain constant especially in semi-shade. We recommend the use of Hydrangea blueing agent for all blue varieties. Due to the difficulties of growing blue Hydrangeas in pots, the first flush of flowers may flower pink. All Flower JUL-OCT.

Colour-changing mopheads and lacecaps in shades of pink, white and blue from early summer to late autumn and delicate skeletons of flower through the winter.

Cones of white from paniculata and bronze and purple foliage from quercifolia.

Genus of 80 or more species of deciduous and evergreen shrubs and climbers. They originate from woodland in eastern Asia and North and South America.

The larger, showier flowers on flat, domed or conical flower heads are sterile, the smaller, fertile flowers are usually found in the centre. The climbers are suitable for a shady wall or fence and mature specimens provide shelter for insects.

Paniculata species attract insects as they have fertile flowers amongst the sterile ones.

Full Plant Details - Sun/Soil & other attributes - Click to close

Flowering

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Jan

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Feb

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Mar

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Apr

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May

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Jun

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Jul

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Aug

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Sep

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Oct

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Nov

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Dec
Good to know
Introduced by Sir Joseph Banks from a Chinese garden. Originally named H. hortensis which gave rise to the old name 'Hortensia' . Now H. macrophylla (common hydrangea) is divided into 2 groups, Lacecaps and Hortensias(mopheads). Acid soils with a pH of less than 5.5 produce blue flowers; those above, pink. Neutral soils can be influenced by blueing compound. White flowers are not affected by pH value.
Place of origin
Eastern Asia, North and South America.
Hydrangeas
Deciduous
Evergreen
Semi-evergreen
Keeps some of its foliage all year, and will drop some leaves as well.
Climber
Some of these climbing plants will need trellis or wire supports if grown on walls or fences. Other grow aerial roots and are self-clinging
Medium shrub
Typically grow to around 4-6 feet in height
Tall Shrub
Neutral to acid soil
Acid soils will produce blue/purple
Neutral to alkaline soil
Alkaline will produce pink/red flowers.
harmful if eaten
(People & Pets)
may cause skin allergy
(People & Pets)