Allium ‘Mount Everest’ is a striking ornamental onion cultivar known for its tall, elegant stems topped with large, spherical clusters of pure white, star-shaped flowers. Blooming in late spring to early summer, these globe-shaped blooms can reach 5 to 6 inches across, creating a bold vertical accent in borders and mixed plantings. Typically growing 3 to 4 feet tall, this bulb-forming perennial thrives in full sun and well-drained soils and is drought tolerant once established. The flowers attract pollinators, while the foliage and bulbs are generally avoided by deer.

Why choose Allium ‘Mount Everest’

• Dramatic white blooms: Large spherical flower heads provide strong visual impact

• Architectural height: Tall stems add structure to garden beds

• Long-lasting flowers: Excellent for both fresh and dried floral arrangements

Cultivating tips

• Sun exposure: Full sun produces strongest stems and best flowering

• Soil needs: Prefers well-drained soils; avoid wet, heavy areas

• Maintenance: Allow foliage to die back naturally to replenish bulbs

Designs for your garden

• Focal points: Ideal for creating striking accents in borders

• Mixed perennial beds: Pairs beautifully with grasses and late-spring bloomers

• Modern landscapes: Spherical white flowers add clean architectural form

Ecological benefits

• Pollinator-friendly: Blooms attract bees and other beneficial insects

• Deer resistant: Scented bulbs and foliage are typically avoided by deer

• Low-water plant: Performs well in dry, sunny sites once established

Looking for native alternatives?

Allium cernuum – Lady’s Leek: A native ornamental onion with nodding pink blooms, perfect for pollinator gardens and dry, sunny spots.
Liatris spicata – Blazing Star: A tall native perennial with dense purple flower spikes that attract butterflies and thrive in sunny, well-drained soils.
Echinacea purpurea – Purple Coneflower: A sturdy native wildflower with bold, daisy-like purple blooms loved by bees, butterflies, and songbirds.