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Zones 5-9
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Zones 5-9

Vulcan Rhododendron

Rhododendron hybrid ‘Vulcan’

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Vulcan Rhododendron

Rhododendron hybrid ‘Vulcan’

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Special Features
Zone Map
Spring Color
Tolerates Alkaline Soil

Botanical Name

Rhododendron hybrid ‘Vulcan’

Outdoor Growing zone

5-9

Mature Height

5-8

Mature Width

5-10

Sun needs

Full Sun, Partial Sun

DOES NOT SHIP TO

AK, CA, HI, PR

The Vulcan Rhododendron grows to be a rounded, evergreen shrub 5 feet tall and wide within 10 years. It will ultimately reach 8 feet and be up to 10 feet wide. In late spring it is smothered in huge bunches of large, blood-red flowers that turn it into an inferno of color. This substantial shrub is perfect for the back of borders or beneath tall deciduous trees, and its large, dark green leaves always look attractive and interesting. Use it around your home, in beds, or in wooded areas. We recommend it for the southeast, where it tolerates hot humid summers better than just about any other variety.

  • Spectacular blood-red blooms in large trusses
  • Handsome dense, rounded form growing to 5 feet and more
  • Showy large leaves are attractive all year
  • Excellent choice for hotter zones
  • Grows well in partial shade beneath trees

The Vulcan Rhododendron will grow across a wide part of the country, from zone 5 to 8, and to zone 9 in the northwest. Plant it in full sun in cooler areas, or anywhere in partial shade with morning sun, or in the dappled shade beneath deciduous trees. The soil should be moist, well-drained and rich in organic material. It should be acidic, and most soils in the east are suitable. If you have clay soil, use plenty of organic material and plant in a raised bed. In planters and tubs use potting soil blended for acid-loving plants.

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