The Site Gardener

Plant Library

Explore 4,545 plants, with photos and growing details.

Back to Tools

← Back to plant results

Rhododendron America

America Rhododendron

America (Rhododendron ‘America’) is an evergreen rhododendron with red flowers. Its display arrives in the later part of the rhododendron flowering season, with the exact timing influenced by local weather. The flower tubes widen into flared faces that display the color clearly. Clusters commonly carry about 10-12 blossoms. Contrasting dark red markings add detail within the flower faces.

The plant develops an irregular branch pattern. Its foliage is retained through winter, keeping a leafy framework between flowering seasons. It can provide a flowering focal point within a mixed shrub border or woodland-edge planting.

Choose a sunny position with acidic, humus-rich, well-drained soil. Maintain moisture during establishment and dry weather, and mulch over the root zone without burying the stems.

Size guide
• Height: About 5 ft at 10 years; growth continues afterward
• Width: Allow for the cultivar’s natural branch spread; a verified numerical spread is not available in this reference.

Hardiness
• Approximate cold tolerance: -20°F
• USDA cold-limit equivalent: Zone 5a
This equivalence is calculated from the published temperature rating. Local conditions and summer climate also affect performance.

Best Uses
• Border
• Woodland Gardens
• Accent Plant

Plant type
Broadleaf Evergreen, Evergreen Shrub, Flowering evergreen shrub
Height
5 ft+
Width
6-8 '
Hardiness zones
5a–8
Sunlight
Full Sun
Growth rate
Moderate
Bloom time
Spring to summer
Flower color
Red
Leaf color
Green
Fall color
Green
Attracts
Bees
Soil
Acidic, Humus rich, Moist well-drained
Landscape use
Accent Plant, Border, Woodland Gardens
Shape
irregular
Fragrant
No
Drought tolerant
No
10-year height
5 ft