Polarnacht Rhododendron
Polarnacht Rhododendron (Rhododendron x 'Polarnacht')
Polarnacht Rhododendron (Rhododendron x 'Polarnacht') is a cold-hardy evergreen shrub prized for its unusually dark purple blooms and dense, compact habit. Bred in Germany for northern climates, this cultivar brings bold spring color and refined structure to shaded gardens and cool-weather landscapes.
Distinctive Features
Reaching 3 to 5 feet tall and wide, Polarnacht forms a neat, mounded shape with leathery, dark green foliage. In mid to late spring, it produces rounded clusters of deep violet-purple flowers with near-black undertones and a dark red flare at the throat. The dramatic coloration makes it one of the darkest-blooming rhododendrons available.
Growing Conditions
- Sun Exposure: Partial shade to filtered sunlight
- Soil Type: Moist, well-drained, organic-rich soil
- Soil pH: Acidic
- Water Needs: Moderate; prefers even moisture
- USDA Hardiness Zones: 4 to 8
Ideal Uses
- Focal point in cool-climate woodland gardens
- Foundation plantings with moody spring color
- Mass plantings for high-impact seasonal contrast
- Accent shrub in shaded entry gardens or courtyards
- Mixed borders with lighter-flowering companions
Low Maintenance Care
- Mulch annually to retain soil moisture and regulate temperature
- Water consistently during dry weather, especially in spring
- Prune lightly after flowering to preserve shape
- Use acid-based fertilizer in early spring for optimal growth
- Protect from winter wind exposure in open northern sites
Why Choose Polarnacht Rhododendron
- Exceptionally dark purple blooms for standout spring color
- Cold-hardy and reliable in northern landscapes
- Compact size suits smaller gardens and borders
- Evergreen foliage provides year-round structure
- A striking focal point for shaded and woodland settings
Polarnacht Rhododendron combines intense bloom color and durable performance�making it a dramatic focal point for cool, shaded landscapes and foundation plantings that need bold spring interest.
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