Allium – ‘Purple Sensation’

Package Count: 5 bulbs per pack

The ‘Purple Sensation’ ornamental onion (Allium hollandicum ‘Purple Sensation’) is a striking and architectural favorite prized for its dense, baseball-sized spheres of rich violet-purple flowers. Sturdy stems rise to 32 to 36 inches (80 to 90 cm) high, bearing vibrant star-shaped florets that create a dramatic punctuation mark in spring and early summer gardens. Highly favored for bridging the gap between spring bulbs and summer perennials, this easy-to-grow perennial naturally resists deer and rabbits while eagerly attracting bees and other pollinators.

Plant Characteristics

• Color: Rich violet-purple star-shaped florets.
• Bloom Type: Dense, perfectly round spherical flower heads (globes) measuring 4 to 5 inches across.
• Height: 32 to 36 inches (80 to 90 cm) tall.
• Fragrance: Lightly fragrant blooms with characteristic foliage scent when crushed.
• Bloom Time: Late spring to early summer (May to June).
• Hardiness: Zones 4 through 9.

Growing & Planting Guide

• Timing: Plant bulbs in the fall (September to November) before the ground freezes.
• Depth: Plant 4 to 6 inches (10 to 15 cm) deep.
• Spacing: Space bulbs 6 to 8 inches (15 to 20 cm) apart.
• Sunlight: Full sun to light partial shade.
• Soil: Fertile, loose, and exceptionally well-draining soil; critical to avoid winter soggy conditions to prevent bulb rot.