New! Rhododendron viscosum, Swamp Azalea
Rhododendron viscosum, Swamp Azalea

New! Rhododendron viscosum, Swamp Azalea

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SKU: S66629
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Quick Facts
Common Name: Swamp Azalea
Hardiness Zone: 4-9S/W Exposure: Part Shade
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Blooms In: May-Jul
Height: 4-6' Spacing: 5-6'
Read our Growing Guide Ships as: ONE GALLON POT
Fragrance: Yes
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Shipping Details Shipment begins in late March 2016, depending on your zone. See shipping tab for details

Product Details

Product Details

Native to the eastern United States, Rhododendron viscosum is a hardy selection that thrives in moist, well-drained soils, and is also salt tolerant. One of the later blooming native Azaleas, the white blossoms are very fragrant, so place it near a pathway to enjoy the scent. Foliage turns a striking combination of orange and maroon before dropping for the season.

Rhododendron is a genus of evergreen and deciduous shrubs, which includes Azaleas. These lovely shrubs look terrific in a mixed border or in foundation plantings. All thrive in full sun or partial shade (required in the South) and evenly moist, acid soil.

For more information on growing and care, click on Growing Guide.




The size of the plants we ship has been selected to reduce the shock of transplanting. For some, this means a large, bareroot crown. Others cannot travel bareroot or transplant best if grown in containers. We ship these perennials and annuals in 1 pint pots, except as noted. We must point out that many perennials will not bloom the first year after planting, but will the following year, amply rewarding your patience. We ship bulbs as dormant, bare bulbs, sometimes with some wood shavings or moss. Shrubs, Roses, vines, and other woody plants may be shipped bareroot or in pots. The size of the pot is noted in the quick facts for each item.


We ship our bulbs and plants at the right time for planting in your area, except as noted, with orders dispatched on a first-come, first-served basis by climate zone. Estimated dates for shipping are indicated in the Shipping Details box for each item. Please refer to the Shipping Details box to determine the earliest shipping time. Unless you specify otherwise, fertilizers, tools, and other non-plant items are shipped with your plants or bulbs. Please supply a street address for delivery. Kindly contact us with two weeks notice, if you'll be away at expected time of delivery.


We guarantee to ship plants that are in prime condition for growing. If your order is damaged or fails to meet your expectations, we will cheerfully replace or refund it. Please contact our Customer Service Department at 1-800-503-9624 or email us at [email protected]. Please include your order number or customer number when contacting us.



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Growing guide

Growing guide

Pronunciation: roe-doe-den'-dron   

Rhododendrons and Azaleas grow in full sun or partial shade in the North, but prefer partial shade or shade in the South and in warm inland areas of the West. They require moisture-retentive but well-drained soil that is on the acidic side. Turn a healthy layer of organic matter into the soil before planting. Gardeners in the Deep South and West who have heavy clay soil should plant Rhododendrons so that the top of the root ball stands several inches above the surrounding soil, then push prepared soil around and just over the root ball to form a mound. Mulch after planting to keep roots cool and moist.

Removing spent flowers (tedious but rewarding work on large specimens) makes for a better show the following spring; take care when removing flowers not to damage new buds at the base of the old flower stems. Prune as needed after bloom, cutting just above a set of leaves.

Deciduous and evergreen Rhododendrons are ideal for shrub borders, mixed perennial and shrub borders, and foundation plantings.

Not recommended for desert areas.

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