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Azalea viscosa

Swamp Azalea

Award Winner Fragrant Scent Hardiness H6

Strongly fragrant white flowers flushed pink along the tubes appear in early and midsummer on Azalea viscosa. This large deciduous shrub brings scent after most azaleas have finished and suits moist acidic borders, woodland gardens and pond-side planting.

SKU: AZAL-84-Y

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Plant Details

Size

Max Height
1.5 m — 2.5 m
Max Spread
1.5 m — 2.5 m
Growth Habit
Densely branched plant with compact, leafy, rounded overall shape.

Planting Position

Sunlight Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun Part Shade
Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
South East West
Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Sheltered
Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
Hardiness H6 (−20 to −15 °C) Very cold-hardy

Ideal Soil Conditions

Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Clay Loam Sand
Soil Moisture Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable
Soil pH Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid

Plant Uses & Merits

Uses
  • Patios / Courtyards
  • Flower Borders
Merits
  • Fragrant
  • RHS | Award Of Garden Merit

Azalea viscosa Description

Azalea viscosa, also known as swamp azalea, forms a bushy deciduous shrub with dark green leaves that are paler and slightly bluish beneath. Very fragrant, narrow funnel-shaped white flowers open in early to midsummer, with deep pink flushing along the tubes and long projecting stamens. Reaching up to around 2.5 metres, it is best suited to larger woodland borders, informal screens and naturally moist areas beside ponds or streams. Grow in full sun or partial shade in humus-rich acidic soil that remains moist but drains sufficiently. The cool, damp conditions found in many Irish gardens suit it particularly well. Allow enough room for its mature spread and avoid allowing newly planted shrubs to dry out.