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Description
Hydrangea Macrophylla, also known as bigleaf hydrangea, is a popular ornamental plant that is native to Japan, China, and Korea. It belongs to the Hydrangeaceae family and is known for its beautiful flowers that come in a range of colors, including pink, blue, purple, and white. This plant can grow up to 6 feet tall and 6 feet wide, making it a great choice for landscaping and gardens.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Cornales |
| Family | Hydrangeaceae |
| Genus | Hydrangea |
Appearance
The leaves of Hydrangea Macrophylla are broad and glossy, with a dark green color. The flowers are large and showy, with a diameter of up to 12 inches. They are typically arranged in clusters, with each cluster containing many individual flowers. The color of the flowers can vary depending on the pH of the soil. In acidic soil, the flowers will be blue or purple, while in alkaline soil they will be pink or red. White flowers are also possible.
Care Guide
Hydrangea Macrophylla requires regular watering, especially during hot and dry weather. It also benefits from regular fertilization, with a balanced fertilizer applied in spring and summer. The plant prefers well-draining soil that is rich in organic matter. It can tolerate full sun to partial shade, but too much sun can cause the leaves to wilt. Hydrangea Macrophylla is hardy in zones 6-9.
Common Pests & Diseases
Hydrangea Macrophylla is susceptible to a few common pests and diseases. Aphids, spider mites, and scale insects can all infest the plant, causing damage to the leaves and flowers. Powdery mildew and leaf spot are two fungal diseases that can affect Hydrangea Macrophylla, causing discoloration and damage to the leaves. Regular monitoring and treatment with insecticides and fungicides can help prevent these issues.
Habitat
Hydrangea Macrophylla is native to Japan, China, and Korea, where it grows in wooded areas and along stream banks. It prefers moist, well-draining soil and can tolerate a range of temperatures.
Question and Answer
Q: Can Hydrangea Macrophylla be grown in containers?
A: Yes, Hydrangea Macrophylla can be grown in containers, but it will require regular watering and fertilization.
Q: How do I change the color of the flowers?
A: The color of the flowers can be changed by altering the pH of the soil. To make the flowers blue, use an acidic fertilizer or add aluminum sulfate to the soil. To make the flowers pink, use a basic fertilizer or add lime to the soil.
Q: How often should I prune my Hydrangea Macrophylla?
A: Hydrangea Macrophylla should be pruned after it has finished flowering. Remove any dead or damaged wood, and cut back any stems that are too long or out of shape.
Q: Can Hydrangea Macrophylla be propagated from cuttings?
A: Yes, Hydrangea Macrophylla can be propagated from cuttings taken in the summer. Dip the cuttings in rooting hormone and plant in well-draining soil. Keep the soil moist and the cuttings in a shaded area until they have rooted.
Related Plants
- Hydrangea paniculata
- Hydrangea quercifolia
- Hydrangea serrata
- Hydrangea arborescens
References
- “Hydrangea Macrophylla.” Missouri Botanical Garden. Accessed August 23, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e316
- “Hydrangea Macrophylla.” Royal Horticultural Society. Accessed August 23, 2021. https://www.rhs.org.uk/plants/3837/hydrangea-macrophylla/details
- “Bigleaf Hydrangea.” The Spruce. Accessed August 23, 2021. https://www.thespruce.com/growing-bigleaf-hydrangeas-1402647
