#1809 most planted
Rhododendron viscosum
Swamp azalea · also Clammy azalea, Swamp honeysuckle
BroadleafDeciduous
18
trees mapped
0.00%
of all named trees
2
cities
2.0 in
median trunk (5 cm, 3 measured)
19 yr
median age (100% have a planting date)
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Rhododendron viscosum is a deciduous shrub that grows up to 8.2 feet tall and broad. It produces fragrant, funnel-shaped white flowers flushed pink in early summer. This species requires a sheltered position in dappled shade with acidic soil rich in leaf mold.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 150.01%19 yr—
- 30.00%—2.0 in
Traits
- Form
- Broadleaf
- Foliage
- Deciduous
- Mature height
- 8.2 ft
- Canopy spread
- 8.2 ft
- USDA zones
- 6
- Sun
- Part shade
- Soil
- Acidic
- Blooms
- Jun, Jul
Trunk diameters across every city: median 2.0 in, mean 2.0 in, 90th percentile 2.0 in. Measured at breast height, as published by each inventory.
Native range
Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.
Temperate Broadleaf & Mixed Forests
- Mississippi lowland forests
- New England-Acadian forests
Other Rhododendron in the catalogue
20 of the top 2,000 species are in this genus.
