Hydrangea are endemic to the woodlands of Eastern Asia and North and South America.
Hydrangeas are evergreen and deciduous broadleaf shrubs with huge clusters of flowers. The color of the flower will depend on our soil pH!
| Plant Types: | Interior Plant, Perennial, Shrub |
| Light: | Shade to Full Sun |
| Height: | 4 feet to 6 feet |
| Width: | 6 feet to 8 feet |
| Zones: | 4a to 9b |
| Bloom Color: | Lavender, White |
| Bloom Seasons: | Early spring, Mid spring, Late spring, Early summer, Mid summer, Late summer |
| Leaf Color: | Green, Variegated |
| Special Features: | Not North American native |
| Shape: | Rounded |
| Type of Soil Preferred: | Acidic, Clay, Loamy, Neutral, Sandy, Well-Drained |
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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.
Hydrangeas can grow in a wide range of conditions. Protect them from cold drying winds.
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.
Hydrangea plants prefer ample moisture, with the pH depending on the cultivar. Species can become chlorotic if grown in alkaline soil.
Feed twice a year, once at the beginning of spring and once at the beginning of summer.
Prune in early spring, removing old wood. Remove crossing shoots, annually, to maintain a healthy framework.
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.