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Allium ‘Millennium’
(Ornamental Onion)


Great for wildlife
June - August
45cm x 45cm
Cut Flowers
Fully Hardy
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Our team admires Allium ‘Millennium’ for its versatility and low-maintenance nature. Planted in sunny borders or rock gardens, its compact form and cheerful pink globes provide a striking contrast to surrounding greenery. Pair it with ornamental grasses or Echinacea for a vibrant Summer display. Not only does it add visual interest, but it also attracts pollinators, making it a valuable addition to wildlife-friendly gardens.

Additional information

Plant Type
Flowering Period
Flower Colour
Fully Grown Size
Garden Position
Light Level
RHS Plants For Pollinators
RHS Garden Merit Award
Pot Size
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Introducing the showstopper of the gardening world, the Allium 'Millenium', a sensational plant that brings a burst of colour and whimsy to your outdoor oasis. With its vibrant personality and delightful features, the Allium 'Millenium' is the ultimate pollinator attractor in your flower bed! Standing tall and proud, the Allium 'Millenium' boasts spherical flower heads that resemble a dazzling firework display. Its blooms, a mesmerising blend of vivid purples and pinks, creating an irresistible feature. But it's not just about looks with the Allium 'Millenium'. This Allium is surprisingly low-maintenance, perfect for both green thumbs and gardening newbies. With a carefree attitude, it thrives in a variety of soil types and is resilient enough to endure the ever-changing weather whims of Mother Nature. Plus, it's drought tolerant, making it an excellent choice for those forgetful waterers or sun-drenched gardens. Allium 'Millenium' also has an impressive endurance, blooming year after year like clockwork. Plant it once, and watch it return faithfully to grace your garden with its botanical display.

Planting Conditions

The Allium 'Millenium' is a versatile and resilient plant that happily embraces various planting conditions. Whether your soil is sandy, loamy, or somewhere in between, this botanical gem will thrive. Full sun? Partial shade? It can handle both at ease. And when it comes to water, it's surprisingly low-maintenance. From occasional droughts to rainy days, the Allium 'Millenium' can thrive in all planting conditions. So you can plant it in your garden with confidence, knowing that this plant is as adaptable as they come.

Watering & Feeding

When it comes to watering and feeding, Allium 'Millenium' is quite self-sufficient. It's a plant that thrives on a "less is more" philosophy. Moderate watering is generally sufficient, allowing the soil to dry out between waterings. This plant has a remarkable tolerance for drought, making it ideal for busy or forgetful gardeners. As for feeding, the Allium 'Millenium' isn't high-maintenance. A well-balanced, general-purpose fertiliser applied in early Spring is usually enough to keep it happy and healthy.

General Care

General care for the Allium 'Millenium' is a breeze, suitable for gardeners of all levels. This low-maintenance perennial requires minimal effort to keep it looking its best. Plant it in well-draining soil and choose a sunny or partially shaded spot in your garden. Deadheading spent blooms helps maintain a tidy appearance, and dividing the plant every few years promotes its longevity. With its resilient nature and easy upkeep, the Allium 'Millenium' is a carefree companion.