Rhododendron ‘Nova Zembla’ is one of the most widely grown hardy evergreen rhododendrons, prized for its large clusters of brilliant red flowers. In mid- to late spring, rounded trusses of trumpet-shaped blooms appear in vivid scarlet-red, often marked with deep maroon blotches on the upper petals. The glossy, dark green evergreen foliage forms a dense, upright shrub that provides year-round structure and color. Its exceptional cold tolerance and reliable flowering make it a classic choice for woodland gardens, shrub borders, and foundation plantings
- Height: 1.5-2.44 m (5-8 ft)
- Spread: 1.5-2 m (5-6 ft)
- Hardiness: Zone 4
- Sun or Shade: part sun to part shade
- Bloom Time: mid to late spring
- Leaf Colour: green
- Bloom Colour: pink
- Critter Resistance: moderate deer resistance
- Nature Attraction: bees and other pollinators
Growing and Maintenance Tips
Plant in partial shade in moist, well-drained acidic soil rich in organic matter. Rhododendrons prefer soil with a pH around 4.5–6 and benefit from mulch to keep roots cool and retain moisture. Avoid waterlogged soil and strong afternoon sun in hot climates. Prune lightly after flowering if shaping is needed, as flower buds for the following year form soon after bloom. Regular watering during dry periods helps maintain healthy foliage and flower production.
