1 / 4Key characteristics
- Family
- Amaryllidaceae
- Height
- 2 to 3 feet tall
- Width
- 1 to 1.5 feet wide
- Flower color
- Purple
- Foliage color
- Gray-green
- Bloom time
- Late spring to early summer
- Light
- Full sun
- Water
- Low to moderate; prefers well-draining soil
- Maintenance
- Low; deadhead spent flowers and allow foliage to die back naturally
- Growing zone
- USDA zones 4 to 8
- Wildlife
- Bees and butterflies are attracted to the flowers, while deer and rabbits tend to avoid them
Bulbs
Allium aflatunense 'Purple Sensation'
Purple Sensation Ornamental Onion
Allium aflatunense 'Purple Sensation' is a bulbous perennial from Central Asia, renowned for its globe-shaped, rich purple flower heads that bloom in late spring to early summer. The star-shaped flowers form dense, spherical clusters up to 5 inches across, atop sturdy stems, creating a dramatic display. Its gray-green, strap-shaped basal leaves emerge in spring and wither by bloom time, providing a tidy backdrop. Ideal for sunny borders, rock gardens, and naturalized areas, 'Purple Sensation' thrives in full sun and well-draining soil, requiring minimal maintenance and attracting bees and butterflies.
Works well in
- Borders
- Sun Gardens
- Containers
- Cut Flower Gardens
- Pollinator Gardens
Companion plants
Sedums · Peonies · Coneflowers · Salvias · Shasta daisies · Asters
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.
More bulbs

Narcissus 'Frosty Snow'
Frosty Snow Daffodil
Blooms pure white petals with a lemon-yellow cup that gradually fades to white
Full sun to partial shade

Allium stipitatum 'Mt. Everest'
Mt. Everest Ornamental Onion
Blooms pure white, rounded clusters of star-shaped flowers
Full sun

Narcissus 'Petit Four'
Petit Four Daffodil
Blooms creamy white outer petals with a frilly, fully double center cup in apricot-pink to peach tones
Full sun to partial shade

Narcissus 'Avalanche'
Avalanche Daffodil
Blooms creamy white petals with a greenish-yellow to yellow cup
Full sun to partial shade