Water
Swamp Azalea thrives in consistently moist soil. Water deeply when the top inch of soil feels dry, especially during hot, dry periods. Avoid waterlogged conditions but never let the soil completely dry out.
Mulching helps retain moisture.
Also known as Clammy Azalea · Swamp Honeysuckle · Texas Azalea
Swamp Azalea (Rhododendron viscosum) is a deciduous shrub native to eastern North America, prized for its fragrant white flowers and tolerance of wet soils.
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade
50% intensity
Prefers morning sun and afternoon shade, especially in hotter climates.
Consistently Moist
75% intensity
Prefers damp soil; avoid waterlogging.
Acidic, moist, organic-rich soils
50% intensity
Moderate
50% intensity
Hardy in USDA zones 5-9. Protect from extreme heat and freezing winds.
Acid-Loving Plants
25% intensity
Use balanced, slow-release fertilizer in spring. Avoid over-application.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Swamp Azalea thrives in consistently moist soil. Water deeply when the top inch of soil feels dry, especially during hot, dry periods. Avoid waterlogged conditions but never let the soil completely dry out.
Mulching helps retain moisture.
Prune immediately after flowering to shape the plant and remove any dead, damaged, or crossing branches. Avoid heavy pruning in late summer or fall, as this can remove flower buds for the following year.
Best propagated by cuttings taken in early summer. Use rooting hormone and place cuttings in a moist, well-draining medium. Softwood cuttings usually root faster. Layering is also a successful method.
Repot container-grown Swamp Azaleas every 2-3 years in spring, before new growth begins. Use a well-draining, acidic potting mix. Ensure the new container has adequate drainage holes.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Swamp Azalea (Rhododendron viscosum)
Where Swamp Azalea (Rhododendron viscosum) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Rhododendron |
| Species | Rhododendron viscosum |
Similar in genus Rhododendron
Answers based on plant encyclopedia data
