Rocky Knoll Farm
Vulcan
$32
Behold the fiery red blossoms of the Vulcan trusses, which are dome-shaped and hold about 10 flowers each. This bright hybrid rhododendron with 4" to 5" dark green leaves can grow to 5 ft at maturity. Vulcan is hardy to -15°F when protected from windchill. It does well in full sun to partial shade and is a late midseason bloomer.
Plant Type
Rhododendron
Bloom Time
April-May
Bloom Color
Red
Hardy Threshold
-15°F
Zones
5-9
Sun Exposure
Full Sun, Partial Shade
Mature Height
5 Feet
Spread
5 Feet
Soil
Well-Draining
Foliage
Evergreen / Elepidote
Features
