Northwest Blooms · Bulbs
Allium stipitatum 'Mt. Everest'
Mt. Everest Ornamental Onion
- Family
- Amaryllidaceae
- Height
- 3-4 feet tall
- Width
- 1-2 feet wide
- Flower color
- Pure white, rounded clusters of star-shaped flowers
- Foliage color
- Gray-green, strap-like leaves
- Bloom time
- Late spring to early summer
- Light
- Full sun
- Water
- Low to moderate
- Maintenance
- Low; remove spent blooms and allow foliage to die back naturally
- Growing zone
- USDA Zones 4-9
- Wildlife
- Attracts bees and butterflies
About this plant
Allium stipitatum 'Mt. Everest' is an ornamental onion known for its impressive spherical blooms of pure white that rise on tall, slender stems. These pristine globes, made up of dozens of tiny star-shaped flowers, create a stunning visual display in late spring to early summer. Originating from Central Asia, 'Mt. Everest' has been cultivated for its architectural presence and ability to bring bold texture to garden borders.
Ideal for adding vertical interest, this allium's statuesque blooms are also a magnet for pollinators, drawing bees and butterflies throughout its flowering period. The blossoms gradually give way to decorative seed heads, extending the plant's visual appeal into the summer. 'Mt. Everest' pairs well with vibrant perennials and makes a showy addition to cutting gardens, adding elegance and structure both in landscapes and floral arrangements.
Works well in
Borders · Sun Gardens · Containers · Cut Flower Gardens · Pollinator Gardens
Companion plants
Ornamental grasses · Garden phlox · Black-eyed Susans · Daylilies · Lavender · Coreopsis
Design tip
Summer flowers carry the middle of the season, so place it where the bed needs color once spring bulbs fade. Drift them in uneven groups for a natural look, and interplant with perennials that fill the gap after the leaves die back.
Where to see it
This plant can be seen in the perennial border at the Bellevue Botanical Garden.
