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Rhododendron Species, Japanese Azalea

Rhododendronjaponicum

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Rhododendron japonicum by Todd_Boland
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Family
Ericaceae (er-ek-AY-see-ee)
Info
Genus
Rhododendron (roh-do-DEN-dron)
Info
Species
japonicum (juh-PON-ih-kum)
Info
Synonym
Height

Unknown - Tell us

Spacing
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
Hardiness
4-6 ft. (1.2-1.8 m)
Sun Exposure
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)
Danger
Full Sun
Sun to Partial Shade
Bloom Color
Parts of plant are poisonous if ingested
Bloom Time
Pink
Coral/Apricot
Orange
Red-Orange
Gold (yellow-orange)
Bright Yellow
Foliage
Mid Spring
Late Spring/Early Summer
Other Details
Other details
Deciduous
Seed Collecting

Unknown - Tell us

Category
From softwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Patent Information

Unknown - Tell us

Foliage Color
Allow pods to dry on plant; break open to collect seeds
Bloom Characteristics

Unknown - Tell us

Water Requirements

Unknown - Tell us

Where to Grow

Unknown - Tell us

Regional

This plant is said to grow outdoors in the following regions:

Berkeley, California

East Peoria, Illinois

Bayville, New Jersey

Portland, Oregon

Madison, Wisconsin

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6 members have or want this plant for trade

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Gardener's Notes:

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Todd_Boland
St. John's, NL (Zone 5b) | February 2005 | positive

This species was very important to the breeding of the Mollis, Exbury, Knaphill and Ghent Hybrids. It is a very hardy azalea and is avai...Read More

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