Rhododendron ‘Catawbiense Grandiflorum’

Rhododendron  'Catawbiense Grandiflorum'

Planted in 2007, in open forest.
Planted a second, larger, specimen 2008.

Catawba Rhododendron, Iron Clad Rhododendron

Family: Ericaceae

Genus: Rhododendron

Species: Catawbiense Grandiflorum

Type: Shrub

Height: 10-12 ft. (3-3.6 m) - 12-15 ft. (3.6-4.7 m)

Spacing: 8-10 ft. (2.4-3 m)

Hardiness: USDA Zone 4b to -31.6 °C (-25 °F)

Sun Exposure: Sun

Sun Exposure to: Partial Shade

Danger: Parts of plant are poisonous if ingested

Bloom Color: Violet/Lavender

Foliage: Evergreen

Soil pH from: 4.6 to 5.0 (highly acidic)

Soil pH to: 5.6 to 6.0 (acidic)

Propagation Methods: From semi-hardwood cuttings By simple layering

Seed: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Otherdetails: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater Provides winter interest

Planted: 2007

Updated: 2008

About the Author


Is pushing forward with his design of the Karhula gardens. Favorite quote atm 'Rome was not built in a day'