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Description
Rhododendron Gibraltar, also known as Gibraltar azalea, is a stunning evergreen shrub that belongs to the Ericaceae family. This plant is native to the United States and is commonly found in the Appalachian Mountains. It is well-known for its vibrant red flowers that bloom in late spring, adding a splash of color to any garden. The plant is also easy to maintain, making it a popular choice for gardeners of all skill levels.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Rhododendron |
Appearance
Rhododendron Gibraltar can grow up to 8 feet tall and 6 feet wide. The plant has dark green, glossy leaves that are about 4 inches long and 2 inches wide. The flowers are trumpet-shaped and range in color from bright red to orange-red. They bloom in clusters of 8-10 flowers and can last for several weeks. The plant also produces small, brown seed capsules in the fall.
Care Guide
– Water: Rhododendron Gibraltar needs regular watering, especially during dry spells. It prefers moist soil, but be careful not to overwater as this can lead to root rot.- Fertilization: Fertilize the plant in the spring with a balanced fertilizer specifically designed for acid-loving plants.- Soil: The plant prefers well-draining, acidic soil with a pH between 4.5 and 6.0.- Sunlight: Rhododendron Gibraltar thrives in partial to full shade. Avoid planting it in direct sunlight.- Hardiness Zones: The plant is hardy in USDA zones 5-8.
Common Pests & Diseases
– Lace bugs: These insects feed on the leaves of the plant, causing yellowing and stippling. Apply insecticidal soap or neem oil to control the infestation.- Root rot: Overwatering can cause the roots to rot, leading to wilting and yellowing of the leaves. Improve drainage and reduce watering to prevent this.- Powdery mildew: This fungal disease causes a white, powdery coating on the leaves. Apply fungicide to control the infestation.
Habitat
Rhododendron Gibraltar is native to the United States and is commonly found in the Appalachian Mountains. It prefers to grow in moist, acidic soil in partial to full shade. The plant is hardy in USDA zones 5-8.
Question and Answer
Q: How often should I water my Rhododendron Gibraltar?
A: Rhododendron Gibraltar needs regular watering, especially during dry spells. It prefers moist soil, but be careful not to overwater as this can lead to root rot.Q: What type of soil does Rhododendron Gibraltar prefer?
A: The plant prefers well-draining, acidic soil with a pH between 4.5 and 6.0.Q: What pests and diseases should I watch out for?
A: Rhododendron Gibraltar is susceptible to lace bugs, root rot, and powdery mildew.Q: What is the hardiness zone for Rhododendron Gibraltar?
A: The plant is hardy in USDA zones 5-8.
Related Plants
– Rhododendron ‘Cunningham’s White’- Rhododendron ‘Nova Zembla’- Rhododendron ‘PJM Elite’- Rhododendron ‘Roseum Elegans’
References
– American Rhododendron Society. (2021). Rhododendron Gibraltar. https://www.rhododendron.org/descriptionH_new.asp?ID=394- Clemson Cooperative Extension. (2021). Rhododendron and Azalea Care. https://hgic.clemson.edu/factsheet/rhododendron-and-azalea-care/- Missouri Botanical Garden. (2021). Rhododendron ‘Gibraltar’. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e113
