Azalea indica 'Ultimate White'

Common Name:
Ultimate White Azalea

Description:
Azalea indica 'Ultimate White' is a stunning evergreen azalea cultivar known for its large, pure white blooms and lush, deep green foliage. Flowering prolifically in mid to late spring, this variety produces showy, trumpet-shaped flowers that may have a subtle frilled edge, creating a crisp and elegant presence in shaded garden spaces. A member of the indica group, 'Ultimate White' is slightly more sun-tolerant than many other azaleas, though it still performs best in part shade, especially during Melbourne’s warmer months. It thrives in acidic, well-drained soils rich in organic matter and responds well to mulching and consistent moisture. The plant maintains a dense, mounded form and is ideal for mass planting, hedging, or as a feature in containers. Light pruning after flowering helps to maintain its shape and promote compact, vigorous growth.

Form:
Shrub - Medium
Shrub - Clumping / Grass-like / Mounding

Mature Size:
Height: 1 – 1.2 m
Width: 1 – 1.2 m

Aspect:
Part Shade
Full Shade

Flowering:
Flowers in Spring

Flower Colour:
Pure White

Key Attributes:
Suitable for Pots
Perennial
Evergreen
Low Maintenance
Suitable for Hedging
Frost Tolerant (light frost)
Acid-Loving
High Visual Impact
Sun-Tolerant (morning sun preferred)

Toxicity:
Toxic to humans and animals if ingested – particularly the leaves and flowers, may cause nausea or vomiting

Companion Plants:
Camellia sasanqua
Rhododendron spp.
Pieris japonica
Hydrangea serrata
Helleborus x hybridus

For more information and photos of this species, Warners Nursery has detailed information available to the public here