Rhododendron Purple Gem

Purple Gem Rhododendron

Purple Gem (Rhododendron ‘Purple Gem’) is an evergreen rhododendron with purple flowers. Its display arrives in the early-to-middle part of the rhododendron flowering season, with the exact timing influenced by local weather.

The plant develops a rounded outline and compact branching. Its foliage is retained through winter, keeping a leafy framework between flowering seasons. The leaves also release an aromatic scent when handled. Cool-season foliage can develop bronze tones. Its low early growth makes it useful near the front of a planting where the flowers remain easy to see.

Give it acidic, humus-rich soil that stays moist and drains freely. A sheltered position with filtered light or morning sun is a useful starting point; protect the roots from prolonged drying and keep mulch clear of the stems.

Size guide
• Height: About 2 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
• Rock Garden
• Accent Plant

Plant type

Broadleaf Evergreen, Evergreen Shrub, Flowering evergreen shrub

Height

2 ft+

Width

2'

Hardiness zones

5a–8

Sunlight

Part shade

Bloom time

Spring to summer

Flower color

Purple

Leaf color

Green

Fall color

Bronze

Attracts

Butterflies

Soil

Acidic, Humus rich, Moist well-drained

Landscape use

Accent Plant, Border, Rock Garden

Shape

Compact, Dense, Rounded

Fruit

No

Fragrant

No

Deer resistant

Yes

Salt tolerant

No

Drought tolerant

No

10-year height

2 ft