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Allium Millenium

£4.99 £11.99

BULB1018

Pack Size: 1 Bulb

1 Bulb

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Product Description

Allium Millenium

Allium 'Millenium' Bulb Allium 'Millenium' is a stunning and long-blooming variety known for its dense clusters of purple-pink flowers that add structure and colour to borders, beds, and rock gardens. This compact, hardy allium is perfect for attracting bees, butterflies, and other pollinators, creating a lively, wildlife-friendly display from midsummer to early autumn. Its neat, tidy growth and easy maintenance make it ideal for gardeners looking to add reliable pops of colour and interest without much upkeep. Allium 'Millenium' is also highly versatile, thriving in both garden beds and large containers.
The flowers of Allium 'Millenium' are globe-shaped clusters of tiny, star-like blooms in a lovely shade of purple-pink. Each rounded flower head sits atop a sturdy, slender stem, rising above a clump of tidy, deep green foliage. These blooms can reach a height of about 30-40cm, making them an excellent choice for adding low to mid-height structure to borders. The flowers have a light, sweet fragrance that attracts pollinators and remain attractive for several weeks, providing long-lasting colour in the garden.
How to Grow
Planting: Plant Allium 'Millenium' bulbs in autumn for summer flowering. Choose a sunny spot with well-drained soil; they can tolerate a bit of partial shade but prefer full sun for the best blooms. Plant the bulbs about 5-10cm deep and 10-15cm apart to allow room for growth and airflow.
Watering: Water the bulbs after planting to help them establish, and continue to water regularly in the spring as they start to grow. Alliums are fairly drought-tolerant once established but appreciate occasional watering during dry spells.
Feeding: Allium 'Millenium' benefits from a light application of a balanced fertiliser in early spring as new growth appears. Avoid over-fertilising, as this can lead to lush foliage at the expense of flowers.
Maintenance: Allium 'Millenium' is a low-maintenance plant. Simply deadhead spent flowers to encourage a neat appearance and prevent self-seeding. Leave the foliage in place until it turns yellow and dies back naturally, as this will help the bulbs store energy for next year.
Overwintering: Allium 'Millenium' is fully hardy in the UK and doesn’t require lifting or special winter care. Mulching in late autumn can help insulate the bulbs in particularly cold regions, but they should generally survive without extra protection.
Dividing: Every 3-4 years, divide clumps in early spring if they become crowded or to propagate new plants. This will help maintain their vigour and give you additional plants to expand your display.
With its vibrant purple-pink blooms and tidy growth habit, Allium 'Millenium' brings long-lasting colour and structure to the garden from midsummer to early autumn. It’s an easy, attractive choice for gardeners looking to enhance borders, attract pollinators, and enjoy a low-maintenance plant that adds elegance and charm.
Pack contains 1 bulb

Specs & Details

Established height: 60-90cm
Established spread: 10-20cm
Plant spacing: 30 bulbs per m²
Flower colour: Purple
Life cycle: Perennial
Habit: Upright

Features

Perfect for Pots
Perennial (Regrows)
Thrives Full Sun
Full Hardy

Plant Calendar

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FAQs

Please read our FAQs page to find out more.

Can I plant allium bulbs now in the UK?

Allium bulbs are usually planted from early to mid-autumn for flowers in late spring and early summer. If you are looking for allium bulbs for planting now in the UK, plant them as soon as conditions are suitable and avoid storing them for long periods. Choose a sunny, sheltered position with free-draining soil, as alliums do not cope well with winter wet. Planting at the right time gives the bulbs time to establish roots before the ground becomes cold.

Why have my allium bulbs not grown or flowered?

The most common reason allium bulbs fail is excess moisture around the bulb. Heavy, waterlogged soil can cause bulbs to rot before they establish. Planting too shallowly, choosing a shaded spot or damaging the bulb before planting can also affect growth. For the best results, plant allium bulbs deeply in a sunny position with good drainage. Alliums are naturally drought tolerant once established, so they are far better suited to a dry, sunny border than a damp or exposed area of the garden.

Is it normal for allium bulbs to be small, dry or have a smell?

Allium bulb size varies naturally, so some bulbs may be smaller than expected depending on their type. A dry, papery outer skin is also normal, provided the bulb underneath is firm and solid. As ornamental alliums are closely related to onions and garlic, they can have a light onion-like smell. This is not usually a problem. Do not plant bulbs that are soft, wet, badly mouldy or have a strong sour or rotten smell, as these are signs that the bulb may have started to decay.

Will allium flowers look like the photographs?

Allium bulbs should flower in the colour and form described on the product page. Flower photographs show the expected result, but natural blooms can vary slightly in shade depending on sunlight, weather and growing conditions. Images can also appear brighter or darker across different phone and computer screens. A sunny position and healthy, well-established bulb will give the best chance of strong stems, full flower heads and the clearest colour. Alliums flower mainly in spring and early summer, with many producing attractive seedheads afterwards.

Do allium bulbs come back every year?

Many allium bulbs are perennial and can return for several years when planted in a suitable position. After flowering, leave the foliage until it has yellowed and died back naturally, allowing the bulb to store energy for the following season. Their dried seedheads can also be left in place for added structure in the garden. Free-draining soil is especially important for repeat flowering, as bulbs are more likely to weaken or rot in damp ground.