Wetland azaleas

Rhododendron viscosum

Rhododendron viscosum is a deciduous shrub native to eastern North America that thrives in moist environments such as wetlands and mud. It can grow up to 2–3 meters tall and produces fragrant flowers, primarily white to pale pink, during the summer.

Growth CharacteristicsRhododendron viscosum grows best in acidic soil, with a pH of 4.5–6.0 being suitable. It thrives in partial shade and requires sufficient water supply. As a deciduous shrub that sheds its leaves in winter, it enters a dormant state when temperatures drop.

Propagation MethodsRhododendron viscosum can be propagated by seeds or cuttings. Seeds can be harvested in the fall and sown immediately, or stored in the refrigerator and sown in early spring. For cuttings, new branches are cut between late spring and early summer, placed in water to encourage rooting, and then planted.

Cultivation Methods- Soil Preparation: Prepare acidic, well-drained soil. If necessary, adjust soil acidity using soil amendments or peat.
- Planting Time: It is best to plant in early spring or autumn.
- Care: Water thoroughly, but ensure good drainage. Mulching helps maintain soil moisture and suppresses weed growth.

Uses in the Garden
Wetland Rhododendrons are suitable for planting in damp areas or along pond edges, and they pair particularly well with aquatic plants. Due to their fragrant flowers, they are highly valued as ornamental plants and can add a unique charm to your garden.

Important Pests and Control Methods
- Diseases: They are susceptible to diseases such as leaf mold and white blight, so prune regularly to ensure good ventilation.
- Pests: Aphids and leaf beetles may occur. For eco-friendly methods, it is recommended to use predators or sprays containing vegetable oil.

To prevent pests and diseases, early intervention through regular monitoring and proper care is crucial.

Plant Family	Rhododendron family
Height	150~240cm
Spread	2.1~3m
Colors	white
Bloom Period	June
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-30°C

Pink Shell Azalea
Rhododendron vaseyi

Azalea 'Fragrant Star'
Rhododendron viscosum 'Fragrant Star'