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Garden Hydrangea, Big Leaf Hydrangea, Hortensia
Scientific Name: Hydrangea macrophylla (Thunb.) Ser.
Synonym: Hydrangea hortensia, Hydrangea opuloides, Hydrangea otaksa
Family: Hydrangeaceae
Garden Hydrangea, Big Leaf Hydrangea, Hortensia (Hydrangea  macrophylla)
Hydrangea 'Sister Therese'
Recommended Temperature Zone:
sunset: 2-9,14-24,26,28-33,39
USDA: 6-10

Heat Tolerance: Does fine in Phoenix, if the ground is kept acid, and if it is protected from afternoon sun

Sun Exposure: Part sun

Origin: Japan

Growth Habits: Deciduous shrub, the wild species can reach 10 feet (3 m), most hybrids reach 3 feet (90 cm); opposite, dark green, oval leaves, up to 8 inches long (20 cm)

Watering Needs: The soil should be constantly moist and well drained.

Propagation: Cuttings

Most cultivated Hydrangeas are hybrid between Hydrangea macrophylla and Hydrangea aspera. The cultivar 'Variegata' has variegated leaves.

Garden Hydrangea, Big Leaf Hydrangea, Hortensia (Hydrangea  macrophylla)

Garden Hydrangea, Big Leaf Hydrangea, Hortensia (Hydrangea  macrophylla)

Cultural Practices:
Needs acid soil, away from bright sunlight. Check for bugs and diseases regularly.

Blooming Habits:
Blue, mauve, red, or pink flowers. Some other colors are becoming available. The large flowers in the flowerhead are sterile, while the tiny intermixed flowers are fertile. The varieties with pink or blue flowers have the color of the flower depending on the acidity in the soil: blue for very acidic, pink for neutral soil.

Fruiting Habits:

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

1998-2005 Philippe Faucon, All Rights Reserved.