Contents
Description
Rhododendron Sinogrande is a stunning evergreen shrub that is native to China. It is a member of the Ericaceae family and is known for its large, showy flowers that bloom in late spring to early summer. The plant can grow up to 10 meters tall and has a spread of around 6 meters. It is a popular ornamental plant in gardens and parks due to its striking appearance.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Angiospermae |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Rhododendron |
Appearance
Rhododendron Sinogrande has large, leathery, dark green leaves that can grow up to 30cm long. The flowers are trumpet-shaped and can be up to 20cm across. They come in shades of pink, red, and white, and have a distinctive yellow or green blotch on the upper petal. The plant blooms in late spring to early summer, and the flowers can last for several weeks. The bark of the plant is smooth and gray, and the branches are thick and sturdy.
Care Guide
Rhododendron Sinogrande requires special care to thrive. Here are some tips:
- Water: The plant needs consistent moisture, but it should not be overwatered. Water the plant deeply once a week, and ensure that the soil is well-drained.
- Fertilization: Fertilize the plant in early spring with a slow-release fertilizer formulated for acid-loving plants.
- Soil: The plant prefers well-drained, acidic soil with a pH between 4.5 and 6.0.
- Sunlight: Rhododendron Sinogrande prefers partial shade to full sun, but it should not be exposed to hot, direct sunlight.
- Hardiness Zones: The plant is hardy in USDA zones 7-9.
Common Pests & Diseases
Rhododendron Sinogrande is susceptible to a few pests and diseases:
- Aphids: These small insects feed on the sap of the plant and can cause stunted growth and distorted leaves.
- Lace bugs: These insects feed on the underside of the leaves and can cause yellowing and stippling.
- Phytophthora root rot: This fungal disease can cause wilting and yellowing of the leaves, as well as root rot.
- Bud blast: This disease causes the buds to turn black and fall off before they can bloom.
Habitat
Rhododendron Sinogrande is native to China and can be found in the mountainous regions of the country. It grows in woodland areas and on rocky slopes, and prefers a cool, moist climate.
Question and Answer
Q: How often should I fertilize my Rhododendron Sinogrande?
A: Fertilize the plant once a year in early spring with a slow-release fertilizer formulated for acid-loving plants.
Q: Can Rhododendron Sinogrande tolerate full sun?
A: Yes, the plant can tolerate full sun, but it should not be exposed to hot, direct sunlight.
Q: What is the ideal pH for the soil for Rhododendron Sinogrande?
A: The plant prefers well-drained, acidic soil with a pH between 4.5 and 6.0.
Q: What is the hardiness zone for Rhododendron Sinogrande?
A: The plant is hardy in USDA zones 7-9.
Related Plants
- Rhododendron ‘Nova Zembla’
- Rhododendron ‘Roseum Elegans’
- Rhododendron ‘Purple Splendor’
- Rhododendron ‘P.J.M.’
References
- https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-care.htm
- https://www.rhododendron.org/vol29/v29n1p25.htm
- https://www.bhg.com/gardening/plant-dictionary/shrub/rhododendron/
