Allium Mount Everest

Elegant, statuesque and wonderfully refined, Allium ‘Mount Everest’ produces large globe-shaped flower heads made up of pure white star-shaped florets, held high on tall, sturdy stems above the border.

Its crisp white blooms create a striking architectural effect in the early summer garden, bringing light and contrast amongst richer planting tones. The perfectly rounded flower heads seem to float above surrounding perennials and ornamental grasses, adding both height and structure to planting schemes.

Named after the famous snow-capped mountain, ‘Mount Everest’ was introduced as a white-flowering counterpart to the popular purple ornamental alliums and has become one of the most admired white varieties for modern gardens.

Perfect for mixed borders, gravel gardens and naturalistic planting, the flowers are highly attractive to bees and pollinators and also make excellent cut or dried flowers. The decorative seed heads remain attractive long after flowering, extending seasonal interest well into summer.

Reliable, easy to grow and exceptionally elegant, Allium ‘Mount Everest’ is a superb choice for adding sophistication and architectural beauty to sunny borders.

Planting Instructions

When to Plant:

Plant Allium bulbs in autumn (September–November) before the ground freezes. This allows roots to establish for strong flowering the following season.

Where to Plant:
Choose a sunny position with well-drained soil. Alliums are ideal for borders, gravel gardens and naturalistic planting schemes. Avoid areas where soil remains wet over winter.

How to Plant:

• Depth: Plant bulbs about 15–20 cm (6–8 inches) deep.
• Spacing: Space bulbs about 20–25 cm (8–10 inches) apart.
• Soil Prep: Improve soil with compost. In heavier soils, add grit or sharp sand to improve drainage.

Watering:
Water after planting. Once established, Alliums require very little additional watering unless conditions are particularly dry.

Aftercare Tips:

• Allow foliage to die back naturally after flowering to feed the bulb.
• Leave seed heads standing for long-lasting architectural interest.
• Avoid excessive moisture in winter to prevent bulb rot.

Top Tip:
Plant amongst ornamental grasses or deep-coloured perennials to highlight the crisp white flower heads and create a striking contrast in the summer border.

Plant Details

Flowering Period:
May – June (depending on season and conditions)

Height:
36–48" (90–120cm) (approx.)

Position:
Full sun

Hardy Perennial