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Description
Rhododendron Polar Bear is a beautiful evergreen shrub that produces stunning white flowers in late spring. It is a hybrid of the Rhododendron genus, which belongs to the Ericaceae family. The plant is native to North America and is commonly cultivated in gardens and parks for its attractive flowers and foliage.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Rhododendron |
Appearance
Rhododendron Polar Bear is a medium-sized shrub that can grow up to 6 feet tall and 8 feet wide. It has dark green leaves that are about 4 inches long and 2 inches wide. The flowers are white, trumpet-shaped, and about 3 inches in diameter. They bloom in late spring and are highly fragrant.
Care Guide
Rhododendron Polar Bear requires specific care to thrive. Here are some tips:
Water: The plant needs regular watering, especially during dry spells. Ensure the soil is moist but not waterlogged.
Fertilization: Apply a slow-release fertilizer in early spring to promote healthy growth.
Soil: The plant prefers acidic, well-drained soil. Amend the soil with peat moss or pine needles to increase acidity.
Sunlight: Rhododendron Polar Bear needs partial shade to thrive. Avoid planting it in direct sunlight.
Hardiness Zones: The plant is hardy in zones 5-8.
Common Pests & Diseases
Rhododendron Polar Bear is susceptible to several pests and diseases, including:
Lace bugs: These pests suck sap from the leaves, causing them to turn yellow and brown.
Spider mites: These pests feed on the undersides of leaves, causing yellowing and webbing.
Phytophthora root rot: This disease causes the roots to rot, leading to wilting and eventual death.
Bud blast: This disease causes the buds to turn brown and fall off before blooming.
Habitat
Rhododendron Polar Bear is native to North America and is commonly found in wooded areas, along streams, and in swamps. It prefers acidic soil and partial shade.
Question and Answer
Q: Can I grow Rhododendron Polar Bear in a container?
A: Yes, but ensure the container is large enough to accommodate the plant’s roots and use acidic soil.
Q: How often should I fertilize Rhododendron Polar Bear?
A: Apply a slow-release fertilizer in early spring and again in mid-summer.
Q: Can I prune Rhododendron Polar Bear?
A: Yes, prune in late spring or early summer after the plant has finished blooming.
Q: How can I increase the acidity of the soil?
A: Add organic matter such as peat moss or pine needles to the soil.
Related Plants
- Rhododendron ‘Nova Zembla’
- Rhododendron ‘Cunningham’s White’
- Rhododendron ‘Snow Lady’
References
- “Rhododendron Polar Bear.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e137
- “Rhododendron Polar Bear.” Royal Horticultural Society. https://www.rhs.org.uk/Plants/68857/Rhododendron-Polar-Bear/Details
- “Rhododendron Care.” The Spruce. https://www.thespruce.com/rhododendron-care-how-to-grow-1402401
