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Description
Rhododendron Neoglandulosum, also known as the glandular azalea, is a deciduous shrub that belongs to the Rhododendron genus. It is native to the southeastern United States, particularly in the Appalachian Mountains. The shrub can grow up to 6 feet tall and 4 feet wide, with a rounded shape and attractive foliage.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Rhododendron |
Appearance
Rhododendron Neoglandulosum has green, lance-shaped leaves that grow up to 3 inches long. The leaves turn bronze or maroon in fall before dropping. The shrub blooms in late spring to early summer, producing clusters of fragrant, funnel-shaped flowers that are 1 to 2 inches wide. The flowers come in shades of pink, white, or yellow, and have prominent stamens that give them a spiky appearance.
Care Guide
Water
Rhododendron Neoglandulosum prefers moist, well-draining soil. Water the plant regularly, especially during dry spells or hot weather.
Fertilization
Fertilize Rhododendron Neoglandulosum in spring with a slow-release, acid-forming fertilizer. Avoid fertilizing in late summer or fall as this can stimulate new growth that may not have time to harden off before winter.
Soil
Rhododendron Neoglandulosum grows best in acidic soil with a pH of 4.5 to 6.0. If your soil is alkaline, amend it with sulfur or peat moss to lower the pH.
Sunlight
Rhododendron Neoglandulosum prefers partial shade to full shade. Avoid planting it in full sun as this can cause the leaves to scorch.
Hardiness Zones
Rhododendron Neoglandulosum is hardy in USDA zones 5 to 8.
Common Pests & Diseases
Rhododendron Neoglandulosum is susceptible to a variety of pests and diseases, including lacebugs, spider mites, and root rot. To prevent these problems, keep the plant healthy by providing adequate water and fertilizer, and avoid planting it in poorly drained soil. If you notice signs of pests or diseases, treat them promptly with appropriate insecticides or fungicides.
Habitat
Rhododendron Neoglandulosum is native to the southeastern United States, where it grows in woodland areas, on rocky slopes, and in moist meadows. It prefers well-draining soil and partial shade.
Question and Answer
Q: Can Rhododendron Neoglandulosum grow in full sun?
A: No, this shrub prefers partial shade to full shade.
Q: How tall can Rhododendron Neoglandulosum grow?
A: It can grow up to 6 feet tall.
Q: What is the pH range that Rhododendron Neoglandulosum prefers?
A: It prefers soil with a pH of 4.5 to 6.0.
Q: What pests and diseases are common to Rhododendron Neoglandulosum?
A: Lacebugs, spider mites, and root rot are common problems.
Related Plants
- Rhododendron arborescens
- Rhododendron calendulaceum
- Rhododendron canescens
- Rhododendron maximum
References
- “Rhododendron Neoglandulosum.” Missouri Botanical Garden. Accessed July 19, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=283278&isprofile=1&basic=glandular%20azalea.
- “Rhododendron Neoglandulosum.” North Carolina State University. Accessed July 19, 2021. https://plants.ces.ncsu.edu/plants/rhododendron-neoglandulosum/.
- “Rhododendron Neoglandulosum (Glandular Azalea).” Gardenia.net. Accessed July 19, 2021. https://www.gardenia.net/plant-variety/rhododendron-neoglandulosum-glandular-azalea.
