Photo by Melody

PlantFiles: Catawba Rhododendron, Iron Clad Rhododendron
Rhododendron catawbiense 'Grandiflorum'

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Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Species: catawbiense (ka-taw-bee-EN-see) (Info)
Cultivar: Grandiflorum

» View all varieties of Azaleas and Rhododendrons

2 members have or want this plant for trade.

Category:
Shrubs

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)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Sun to Partial Shade
Light Shade

Danger:
All parts of plant are poisonous if ingested

Bloom Color:
Violet/Lavender

Bloom Time:
Late Spring/Early Summer

Foliage:
Evergreen
Smooth-Textured

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

Patent Information:
Unknown - Tell us

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

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There are a total of 11 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive SoooSirius On Jan 13, 2014, SoooSirius from Municipality of Murrysville, PA wrote:

These are VERY long-lived shrubs that can take abuse and severe pruning and bounce right back. The ones surrounding my house are over 40 years old, transplanted from someone's grandma's place. I have sawed them back to 3 ft. twice now since we've been here. These get big. They are in scale to a large Victorian or Georgian style house. (Think 15 ft tall with an equal spread.) They can cover themselves with bloom and are a showstopper when they do. Otherwise they're just dark green. They do have low branches that will root and can be transplanted, and so never seem to have that empty space below that needs to be filled with other plants.
They bloom reliably, deer don't bother them unless they're desperate.

Regional...

This plant has been said to grow in the following regions:

Chicago, Illinois
Overland Park, Kansas
Golden Beach, Maryland
Centre Island, New York
Municipality Of Murrysville, Pennsylvania



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