Rhododendron Belle Heller

Evergreen Azalea

Belle Heller (Rhododendron ‘Belle Heller’) is an evergreen rhododendron with white flowers. Its display arrives near the middle of the rhododendron flowering season, with the exact timing influenced by local weather. Individual flowers measure about 4 inches across. The flower tubes widen into flared faces that display the color clearly.

The plant develops upright branching. 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.

This cultivar tolerates sun, with light shade useful in hotter positions. Provide acidic, humus-rich soil with good drainage, maintain moisture during dry weather and keep mulch away from 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: -10°F
• USDA cold-limit equivalent: Zone 6a
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'-10'

Hardiness zones

6a–9

Sunlight

Full sun to part shade

Growth rate

Fast

Bloom time

Spring to summer

Flower color

White

Leaf color

Dark Green

Fall color

Dark Green

Fruit color

Green

Attracts

Butterflies

Soil

Acidic, Humus rich, Moist well-drained

Landscape use

Accent Plant, Border, Woodland Gardens

Shape

Upright

Bark

Smooth

Fruit

No

Fragrant

No

Deer resistant

No

Salt tolerant

No

Drought tolerant

No

10-year height

5 ft