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Description
Rhododendron Formosanum, also known as the Formosan Azalea, is a flowering plant native to Taiwan. It belongs to the Ericaceae family and is a subshrub that grows up to 2 meters tall. The plant has broad, glossy green leaves that are 5-10 cm long and 2.5-5.5 cm wide. Its flowers are funnel-shaped and bloom in clusters of up to 10 flowers. They are white with pink or purple streaks and have a sweet fragrance that attracts bees and butterflies.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Rhododendron |
Appearance
Rhododendron Formosanum has broad, glossy green leaves that are 5-10 cm long and 2.5-5.5 cm wide. Its flowers are funnel-shaped and bloom in clusters of up to 10 flowers. They are white with pink or purple streaks and have a sweet fragrance that attracts bees and butterflies. This plant blooms in the spring and summer months, and its flowers can last for several weeks.
Care Guide
Rhododendron Formosanum thrives in moist, well-drained soil that is slightly acidic. It prefers partial shade to full sun, and it can tolerate temperatures down to -10°C. Water the plant deeply once a week during the growing season, and fertilize it with a slow-release fertilizer in the spring and fall. This plant is susceptible to root rot, so be careful not to overwater it.
Common Pests & Diseases
Rhododendron Formosanum is susceptible to several pests and diseases, including lace bugs, spider mites, and powdery mildew. To prevent these pests and diseases, keep the plant well-watered and fertilized, and prune any infected branches.
Habitat
Rhododendron Formosanum is native to Taiwan, where it grows in mountainous regions and forests. It is a popular ornamental plant in gardens and parks worldwide.
Question and Answer
Q: What is the hardiness zone for Rhododendron Formosanum?
A: Rhododendron Formosanum can tolerate temperatures down to -10°C and is hardy in zones 7-9.
Q: How often should I fertilize Rhododendron Formosanum?
A: Fertilize Rhododendron Formosanum with a slow-release fertilizer in the spring and fall.
Q: What pests and diseases are common in Rhododendron Formosanum?
A: Rhododendron Formosanum is susceptible to lace bugs, spider mites, and powdery mildew.
Q: What type of soil does Rhododendron Formosanum prefer?
A: Rhododendron Formosanum prefers moist, well-drained soil that is slightly acidic.
Related Plants
- Rhododendron ‘Nova Zembla’
- Rhododendron ‘PJM’
- Rhododendron ‘Cunningham’s White’
References
- “Rhododendron Formosanum.” Missouri Botanical Garden. Accessed 15 October 2021. www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b947.
- “Rhododendron Formosanum.” PlantZAfrica. Accessed 15 October 2021. www.plantzafrica.com/plantqrs/rhododformosanum.htm.
- “Rhododendron Formosanum.” Royal Horticultural Society. Accessed 15 October 2021. www.rhs.org.uk/plants/15180/rhododendron-formosanum/details.
