Hydrangea heteromalla
Hortensia
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Hortensia (Hydrangea heteromalla) - Description
Hydrangea heteromalla is a species of Hydrangea flower, native to the Himalayas and China. Average height is 10'-15' with inflorescences that are 5"-8" across and bloom May-June,full flowering only occurs in full sun. Is a very adaptable plant that is hardy to USDA zones (4)5-7. This plant is seldom seen in American gardens although there is nice specimen at the Hillier Arboretum.
Hortensia (Hydrangea heteromalla) - Blooming
Flowers bloom in the spring, often pink or blue, in clusters called flowerheads. A flowerhead contains small fertile flowers surrounded by 4-petalled sterile florets.
Hortensia (Hydrangea heteromalla) - Growth
Hydrangeas can grow in a wide range of conditions. Protect them from cold drying winds.
Hortensia (Hydrangea heteromalla) - Planting
Hydrangea should be planted in the spring, or from tip cuttings in late spring, or from hardwood cuttings in winter. Cultivars will not come true from seeds.
Hortensia (Hydrangea heteromalla) - Pest
Aphids and slugs can be a potential problem for Hydrangeas. Other issues include powdery mildew, ringspot virus, leaf spots, gray mold, and rust, all of which are quite common.
Hortensia (Hydrangea heteromalla) - Interesting facts
Hydrangea are endemic to the woodlands of Eastern Asia and North and South America.
Hortensia (Hydrangea heteromalla) - Soil and irrigation
Hydrangea plants prefer ample moisture, with the pH depending on the cultivar. Species can become chlorotic if grown in alkaline soil.
