Swamp Azalea

Swamp Azalea

Rhododendron viscosum

Other Names: Clammy azalea, swamp honeysuckle

Bloom Color: White

Bloom Time: May to July

Container Size: 1 Gallon

Featured Plant Category: Focal point, Pollinator Plants, Rain Gardens, Shade Tolerant

Hardiness Zone: 4,5,6,7,8,9

Height: 3' to 5'

Light Requirements: Part shade

Soil Moisture: Medium to Wet

Soil Type: Acidic, humusy, well-drained loam. Tolerates periodic flooding.

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Swamp azalea is a dense, bushy shrub common to bogs and swampy lowland type areas. Clusters of white to very pale pink, fragrant, funnel-shaped flowers bloom in May after the emergence of the foliage. These flowers are stunning and are irresistible to hummingbirds and butterflies! They are not very appreciative of hot summer sun, so they are a bit happier in cooler dappled sun areas. They are tolerant of areas with somewhat poor drainage but do not like to sit in water for extended periods of time. However, they do not tolerate dry soil well. They are breathtaking as both a massed planting or a single specimen. They look good as shrub/mixed borders, as well as woodland/shade gardens. Also effective as a hedge. Another thing to note is it has a lovely variety of fall color, with attractive shades of yellow, orange and purple.


Additional information

Other Names

Clammy azalea, swamp honeysuckle

Bloom Color


Bloom Time

May to July

Container Size

1 Gallon

Hardiness Zone



3' to 5'

Light Requirements

Part shade

Soil Moisture

Medium to Wet

Soil Type

Acidic, humusy, well-drained loam. Tolerates periodic flooding.

Shipping Information

Plant Shipping Carton

At Direct Native Plants, we take many precautions to make sure your plants will arrive in the best condition possible.

Our perennials are grown in a 4” quart-sized pot. These plants are then cut back to fit our packaging, placed in a protective clamshell container (made from recycled materials), and then shipped to you in a cardboard box.

Trees and shrubs are grown in a 7” tall container (referred to as a 1-gallon pot), and depending on the species will be between 12” and 36”. We bag the root section of these plants to prevent them from drying out in transit and ship them in a tall cardboard box. PLEASE NOTE: These boxes can be shipped in bundles up to 6. After that we start a new package, so keep this in mind if you’re trying to get the best shipping rates.

Direct Native Plants supports the United States Postal Service, so your plants will ship via USPS Priority Mail. Orders ship out Monday through Wednesday of each week, and depending on how close you are to our nursery in Maryland, shipping will take anywhere from 1-4 business days.

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