Allium ‘Mount Everest’ – Tall White Flower Spheres for Striking Spring Contrast
Allium ‘Mount Everest’ is a dramatic and elegant ornamental onion, producing large, globe-shaped flower heads in crisp, pure white. Flowering in late spring, the rounded blooms sit proudly atop tall, sturdy stems, creating bold vertical accents within borders.
The luminous white spheres stand out beautifully against darker foliage and richly coloured perennials, making this variety especially effective in contemporary or monochrome planting schemes. Planted in groups, it creates a rhythmic, architectural effect that brings cohesion and height to mixed borders.
Highly attractive to bees and other pollinators, ‘Mount Everest’ combines strong visual presence with ecological value. The blooms are long-lasting and can be left to form decorative seed heads, extending interest into early summer.
Thriving in full sun and well-drained soil, this hardy allium is reliable and low maintenance. Once established, it returns year after year, providing consistent late spring structure and colour.
Clean, architectural, and wonderfully versatile, Allium ‘Mount Everest’ is ideal for gardeners seeking tall white statement flowers with dependable performance.
Seasonal Highlights
Spring: Upright foliage emerges.
Late Spring: Large white spherical blooms open.
Early Summer: Seed heads add structure.
Winter: Bulbs remain dormant underground.
Key Features
Pure white flower heads – Bright, clean colour.
Tall, upright stems – Adds height to borders.
Architectural form – Strong structural impact.
Pollinator-friendly – Excellent for bees.
Hardy and reliable – Easy to grow.
Perfect For
Mixed borders – Back-of-border structure.
White gardens – Luminous seasonal highlight.
Contemporary planting – Clean, defined lines.
Wildlife gardens – Nectar-rich blooms.
Cutting gardens – Fresh or dried arrangements.
Growing Tips
Sun/Position: Full sun.
Soil: Free-draining soil; avoid winter wet.
Hardiness: Fully hardy across the UK.
Care: Plant bulbs in autumn at around 15–20cm deep; allow foliage to die back naturally.
Does the height include the pot?
No, we measure from the top of the pot to the tip of the plant except for some of the instant planted screens, in this case it will be stated in the description
How long does delivery take?
Most orders are delivered in just a few days, Smaller items are often sent with Parcelforce on a next day service, Larger items should allow up to 10 days due to the size of the items they often have to be sent on our own transport.
Where will you leave my plants?
We will leave your order at the front of your property, Parcelforce may
leave your items in a safe place if you let us know, Pallet couriers
will require a flat hard surface to deliver to, no gravel or soil, a
driveway or parking spot would be best. Most importantly Deliveries by
pallet courier will require access for a large truck (bin lorry sized)
to get near the delivery point. Deliveries sent on our own transport may come in a small van or larger truck.
