Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Species: maximum (MAKS-ih-mum) (Info)
Synonym:Rhododendron ashleyi
» View all varieties of Azaleas and Rhododendrons  2 vendors have this plant for sale.
4 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)
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
Spacing:
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
Hardiness:
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
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:
Light Shade
Danger:
Parts of plant are poisonous if ingested
Bloom Color:
Pink
White/Near White
Bloom Time:
Late Spring/Early Summer
Mid Summer
Foliage:
Evergreen
Leathery-Textured
Other details:
Flowers are fragrant
Requires consistently moist soil; do not let dry out between waterings
Soil pH requirements:
4.5 or below (very acidic)
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Patent Information:
Non-patented
Propagation Methods:
From softwood cuttings
From semi-hardwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
By simple layering
By air layering
By stooling or mound layering
Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
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