Rhododendron Species, Blue Rhododendron

Rhododendronaugustinii

Family
Ericaceae (er-ek-AY-see-ee)
Genus
Rhododendron (roh-do-DEN-dron)
Species
augustinii (aw-gus-TIN-ee-eye)
Synonym
Azalea augustini
Rhododendron vilmorinianum
Spacing
6-8 ft. (1.8-2.4 m)
Hardiness
6-8 ft. (1.8-2.4 m)
Sun Exposure
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
Full Sun
Sun to Partial Shade
Bloom Color
Parts of plant are poisonous if ingested
Bloom Time
Blue-Violet
Foliage
Mid Spring
Other Details
Other details
Evergreen
Seed Collecting
Category
From semi-hardwood cuttings
From hardwood cuttings
By stooling or mound layering
Patent Information
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Regional

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Gardener's Notes:

1
positive
1
neutral
0
negative
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S
Municipality of Murrysville, PA | January 2014 | neutral

I had one of these years ago. It grew well for me in Maryland, and moved successfully, but alas our cold here in PA killed it. I would sa...Read More

A
Seattle, WA | May 2009 | positive

Easy and trouble free, like most rhodies in Seattle. Augustinii is one of my favorites because of its large size, and true blue color...Read More

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