Allium

Allium atropurpureum brings a beautifully saturated note to late-spring borders: deep purple-red, half-spherical flowerheads poised on slender stems above neat green foliage. It slips effortlessly through tulips and early perennials, adding height and quiet drama without ever feeling heavy.

A refined choice for modern planting schemes, it also makes a smart cut flower and is notably attractive to pollinators. Plant in autumn for an elegant show in May and June.

• Colour: Deep purple-red globes
• Flowering: May–June
• Height: 60cm
• Best for: Borders, containers and cutting

Allium 'Giganteum' is a magnificent statement allium, lifting generous globes of lilac-pink flowers above the border on tall, assured stems. Its architectural scale gives late-spring planting a wonderfully considered air, while the individual starry florets remain light enough to mingle gracefully with perennials.

These premium 18/+ bulbs are particularly effective planted in measured groups through sunny borders. The flowers are much admired by pollinators, make superb cut stems and leave handsome seed heads for dried arrangements.

Allium sphaerocephalon is a wonderfully refined choice for extending the season with poise. Slender stems rise above neat, narrow foliage, each topped with a dense, rounded head in rich pink to red tones—an elegant punctuation mark through early to late summer.

Superb threaded through borders or planted en masse for a light, rhythmic effect, it also suits generous pots where its upright habit brings height without heaviness. A quietly hardworking perennial, it is also valued for being pollinator friendly.

• Bulb size: 8/10cm
• Height: 50–100cm
• Spread: 10–50cm
• Flowering: June–August
• Position: Full Sun, Partial Sun
• Soil & moisture: Clay; well-drained
• Hardiness: Fully Hardy

Allium siculum subsp. dioscoridis (often sold as Nectaroscordum) is a wonderfully architectural bulb, sending up tall, upright stems topped with softly nodding, bell-shaped blooms in green-tinged cream, delicately brushed with purple. It brings a note of quiet intrigue to late spring and early summer planting, and has an easy elegance that sits beautifully amongst grasses, geraniums and other naturalistic companions.

Fully hardy and happy to naturalise where conditions suit, it’s an excellent choice for borders and informal gardens, offering height, movement and a refined, slightly curious silhouette. Pollinators are particularly fond of it, and as with many alliums it is generally left alone by deer.

• Flowering: May–June
• Height: 120cm
• Spread: 30cm
• Bulb size supplied: 12/14
• Position: Sheltered
• Soil: Moist but well-drained
• Light: Full sun or partial sun

Allium hollandicum ‘Purple Sensation’ is an enduring favourite for a reason: statuesque stems topped with richly coloured, globe-shaped flower heads that bring poise and rhythm to late spring and early-summer borders. The grey-green basal foliage forms early, then quietly recedes as the blooms take centre stage—ideal for weaving through perennials and ornamental grasses.

Equally at home in generous pots, this fully hardy allium is particularly useful where soils are heavy; simply ensure excellent drainage and enjoy a refined, architectural display that also suits the vase.

• Colour & form: deep purple, globe-shaped flower heads
• Best for: borders, containers and cutting
• Wildlife: pollinator friendly; noted for deer resistance
• Season: plant in autumn for flowers in May–June

Allium 'Gladiator' is a statuesque choice for adding modern architecture to late-spring planting. Each bulb sends up a tall, upright stem topped with a perfectly rounded globe of soft lavender-purple flowers—clean, contemporary and wonderfully composed among grasses, nepeta and early roses.

Its grey-green foliage forms a neat base before the flowerheads rise above the border, lending height and rhythm without fuss. An elegant performer in mixed planting, and a fine option for large containers where drainage is assured.

• Large, spherical flowerheads in refined lavender-purple
• Excellent for borders and statement containers
• Pollinator friendly and notably resilient to deer
• Supplied as premium bulbs: 18/20cm

Allium cristophii (Star of Persia) brings a composed sense of theatre to the late spring garden. Each stem carries a broad, shimmering head of rosy‑violet, star-shaped flowers—architectural without being overbearing, and particularly handsome rising through fresh greens at the front of a border.

As the colour softens, the seedheads remain beautifully sculptural, lending quiet structure well into summer. A natural choice for gravel gardens and contemporary planting schemes, and a superb subject for cutting and drying.

• Large, starry flower heads in May–June
• Excellent for cut flowers and long-lasting dried arrangements
• Pollinator friendly and notably deer resistant
• Fully hardy perennial—returns with increasing presence over time

Allium amethystinum 'Red Mohican' PBR is a wonderfully characterful allium, bringing late-spring height and an artful, lightly tousled silhouette to the border. Deep wine-red buds open to a clean white, then finish with playful elongated florets that give each globe a distinctly modern, slightly bohemian air.

Planted in generous drifts, it rises above emerging perennials to provide elegant structure in May and June, and it is a particularly fine choice where you’d like a little movement and pollinator interest woven through a planting scheme.

• Colour progression: wine-red buds opening to white with elongated florets
• Season of interest: May–June
• Style notes: tall, architectural heads with a softly untamed finish

Allium 'Moly Jeannine' (Yellow garlic) is a standout plant for pots & containers, borders, gravel gardens, rock gardens, offering A vigorous, clump-forming allium with neat grey-green foliage and cheerful, starry umbels of bright yellow in early summer—excellent for pots, gravel gardens and sunny borders..

Best grown in full-sun with well-drained soil, it suits gardeners who want clear structure, dependable flowering, and easy planting plans.

Use it in pots & containers, borders, gravel gardens, rock gardens and pair with complementary varieties to build a fuller seasonal display.

Allium ‘Roseum’ is a charming, lightly naturalistic allium, carrying loose heads of soft pink, cup-shaped flowers above narrow, grassy foliage. It’s a wonderfully simple way to weave gentle colour through late spring and into early summer—particularly handsome when planted in drifts through borders or tucked into containers for a relaxed, cottage-garden finish.

• Flower colour: soft pink and white
• Height: 60cm
• Habit: clump-forming perennial
• Best in: borders, containers, and as a delicate cut flower

With its refined, airy presence, this is a lovely companion to late tulips and fresh spring greens, and it’s also welcome in wildlife-friendly planting schemes.

Allium 'Globemaster' is the sort of bulb that brings instant composure to a planting scheme. In late spring, tall, steady stems carry magnificent, perfectly rounded heads of rich violet-purple, each globe composed of countless starry florets. Rising above grey-green foliage, it adds architectural rhythm through borders and naturalistic drifts, while offering a welcome pause of structure amongst softer perennials.

A refined choice for cottage gardens and smarter city courtyards alike, and particularly valuable where you’d like planting that quietly supports pollinators.

• Flowering: May–June
• Height: 80cm
• Bulb size supplied: 18/20cm
• Position: Full Sun, Partial Sun
• Soil: Fertile, well-drained soil; improves with added grit on clay

Delivery: 2-3 working days

Allium 'Ostara' brings a composed, architectural note to late spring and early summer planting schemes. Neat, globe-shaped heads of rich purple, starry flowers rise on straight stems above handsome blue-green foliage—ideal for lending structure to borders, gravel gardens and the best-looking pots on the terrace.

As the flowers fade, the seedheads remain decorative, extending the display with a quietly sculptural finish. A refined choice for sunny positions, and particularly useful where you’d like dependable performance in containers (including on heavier soils, provided drainage is improved).

Why we like it

• Elegant purple globes with a clean, modern silhouette
• Mid-height presence at around 40–50cm—easy to place and layer
• Pollinator friendly and well suited to borders and containers
• Attractive seedheads for lingering interest after flowering

Allium 'Summer Drummer' is the sort of perennial that lends a garden instant composure. Towering stems carry tightly packed, spherical flowerheads in pale purple with lighter highlights, rising well above neighbouring planting for a clean, architectural finish in high summer.

Plant the generous bulbs in autumn and allow them to settle in; by their second season they begin to make a handsome, long-legged statement—ideal threaded through borders, cottage-style planting, or neatly designed city courtyards. The blooms are also excellent for cutting, bringing height and poise to arrangements.

• Bulb size: 18/20
• Habit: Clump-forming perennial with tall, upright stems
• Flowering: July–August
• Best for: Borders, cottage gardens, city & courtyard gardens, cut flowers

Allium stipitatum 'White Giant' brings a poised, architectural note to late spring borders—tall, confident stems topped with dense, starry white spheres that float above fresh green foliage. It is a quietly glamorous choice for contemporary planting schemes and classic cottage-style gardens alike, and it cuts beautifully for arrangements.

Plant in autumn in a sunny, well-drained position and allow the bulbs to naturalise into handsome clumps. As the flower heads rise in May and June, they provide an elegant vertical accent among perennials and grasses, while also offering welcome interest to pollinators.

• Colour & form: star-shaped white flowers in rounded heads
• Height: 110–150cm; a refined, statuesque presence
• Where it shines: borders, pots, and as a cut flower

Allium nigrum is a quietly dramatic allium: creamy-white, cup-shaped flower heads with a distinctive dark central eye, held on sturdy stems above neat, grey-green foliage. Flowering in late spring into early summer, it brings a composed lift to borders and gravel planting, and lends itself beautifully to elegant, architectural arrangements indoors.

• Refined colour – creamy white with green centres and a deep, inky focal point
• Excellent structure – upright stems with crisp, modern presence
• Garden & vase – a handsome cut flower with lasting style
• Wildlife-friendly – pollinator friendly
• Dependable – fully hardy and straightforward to grow

Plant in autumn for a poised display in May and June, then allow the foliage to fade naturally to feed the bulb for next year’s performance.

Allium 'Silver Spring' brings a composed, architectural note to the late-spring border. Each tall stem is topped with a crisp white globe, the individual florets finished with a subtle purple‑pink eye—fresh, modern, and quietly striking among grasses, perennials and shrubs.

Equally at home threading through a cottage scheme or punctuating gravel planting, it also makes a refined cut flower, holding its form beautifully in arrangements. Plant in autumn and allow it to settle; by its second season it will be hitting its stride.

• Flower colour: white with soft pink‑purple detailing
• Best for: borders, gravel gardens, naturalising and cutting
• Style notes: elegant globes for height and structure without heaviness

Allium 'Forelock' is a wonderfully characterful allium, admired for its rich maroon-purple, egg-shaped flowerheads finished with a playful tufted ‘topknot’. Held on elegant stems, it brings composed, architectural punctuation to late-spring planting schemes—equally at home in smart borders or in generous pots placed where the detail can be appreciated.

As the season moves on, ‘Forelock’ continues to provide structure, pairing beautifully with airy grasses, soft cottage perennials, and other spring bulbs. A refined choice for sunny, sheltered positions with good drainage.

• Distinctive flower form: egg-shaped heads with a charming tufted finish
• Colour: deep maroon-purple (Colour Group: Purples & Blues)
• Garden value: strong late-spring presence for borders and containers
• Wildlife: pollinator friendly
• Practical bonus: deer resistant

Allium stipitatum 'Mount Everest' is a statuesque allium of exemplary poise, lifting perfectly rounded globes of crisp white, star-shaped flowers above grey-green foliage. In late spring and early summer, its tall, upright stems bring a clean, architectural note to borders and gravel planting, and the flower heads are equally superb in a vase.

Plant in generous drifts for a composed, contemporary look, or thread through perennials and ornamental grasses for height and rhythm. Once established, this perennial bulb returns with reliable presence and a polished finish.

• Colour: White with a light green flush
• Flower shape: Globe
• Excellent for: Borders, gravel gardens and cut flowers

Allium schubertii is the sort of bulb that stops the eye mid‑stride. Each stem carries an open, starburst head of pinky‑purple, star-shaped florets, held on stalks of subtly varying length for an effortlessly sculptural effect. It is superb in sun-baked borders and equally compelling in a handsome container, where its architectural form can be admired up close.

Flowering in late spring into early summer, it brings a crisp, contemporary note to planting schemes and makes an exceptional cut flower. Left in place, the fading heads remain pleasingly structural, lending quiet drama long after the colour has softened.

• Colour: Purple (Pinks & Purples)
• Flowering: May–June
• Height: 60cm
• Spread: 30cm
• Position: Sheltered, sunny position
• Ideal for: Borders, Containers, Cut Flowers

Allium ‘Hair’ is the sort of plant that makes a border feel instantly more considered. Neat stems rise to curious summer umbels: compact purple centres surrounded by fine, green, hair-like tendrils. It’s delightfully architectural—perfect for contemporary schemes, gravel gardens, and adding a light, witty note among softer perennials.

• Distinctive purple-and-green flowerheads for a modern, design-led look
• Excellent in smart mixed borders, pots, and through gravel planting
• Pollinator friendly and generally left alone by deer

Plant in autumn in free-draining soil and let it settle quietly; by early summer it delivers its memorable silhouette with minimal fuss.

Allium caeruleum (syn. Allium azureum) is a most refined choice for late spring into early summer, sending up slim, upright stems topped with perfectly rounded, sapphire-blue flower heads. Each globe is composed of neat, starry florets—wonderfully crisp in modern gravel schemes, yet equally at home threaded through a softly planted border.

Particularly useful where winter soils can sit wet: plant in pots or raised pockets of free-draining compost and let the colour float above emerging perennials. A quietly architectural allium, and a fine companion for roses and shrubs where its cool blue reads as an elegant foil.

• Colour with poise: vivid blue globes for a clean, contemporary lift
• Border and container friendly: excellent in pots where heavy ground can be troublesome
• Wildlife-wise planting: pollinator friendly, with deer resistance

Allium 'Large Flowering Mix' is a generous selection of large-flowered ornamental onions, chosen for their poised, globe-shaped heads and a softly varied palette. Rising above fresh grey-green foliage, the blooms bring elegant structure from late spring into early summer—particularly effective threaded through borders, gravel gardens, or grouped in generous drifts for a naturalistic finish.

These fully hardy bulbs are wonderfully uncomplicated: plant in autumn, allow them to settle over their first seasons, and enjoy their refined, architectural presence year after year. They are also excellent for cutting—bringing a calm, contemporary note to arrangements.

• Large, globe-shaped flowerheads in a mixed colour palette
• Flowering: May–July
• Height: 60–85cm, with a neat, upright habit
• Pollinator friendly and deer resistant
• Superb for borders, gravel gardens and pots—and for cutting

Allium 'Aflatunense' (hollandicum) is a standout plant for borders, cottage gardens, cut flowers, naturalising, offering A stately ornamental allium for late spring, forming neat clumps of strap-like foliage topped by bold, spherical flowerheads on upright stems. An excellent choice for threading through tulips and cottage-garden perennials, and invaluable for adding height and structure to borders..

Best grown in full-sun, partial sun with moist but well-drained soil, it suits gardeners who want clear structure, dependable flowering, and easy planting plans.

Use it in borders, cottage gardens, cut flowers, naturalising and pair with complementary varieties to build a fuller seasonal display.

Allium ampeloprasum is a wonderfully statuesque allium, prized for its papery buds opening into rounded, lilac-toned globes held aloft on tall, steady stems. Rising cleanly above broad, grey-green foliage, it brings an assured sense of height and structure from late spring into early summer—particularly handsome woven through mixed borders and naturalistic planting.

It also makes a refined cut flower: allow a few stems to open fully for a soft, architectural note indoors, while leaving plenty in the garden for visiting pollinators.

• Elegant, architectural flowerheads in pale pink-lilac and white
• Excellent height for adding lift through borders and meadow-style schemes
• Pollinator friendly and deer resistant
• Fully hardy and pleasingly low-fuss in well-drained ground

Supplied as autumn-planting bulbs.

Allium cowanii (Neapolitan garlic, Cowanii Group) is a quietly captivating allium, sending up loose, airy umbels of pure white, starry flowers on slender stems. Flowering in late spring and early summer, it brings a clean, lifted note to borders, gravel planting and pots—especially effective when threaded through grasses or soft, cottage-style perennials.

Compact and clump-forming, it settles in with ease and returns reliably year after year. Plant in autumn for an elegant drift of white that also proves popular with pollinators.

• Flower colour: White
• Flowering period: May–June
• Best for: Borders, containers, cottage gardens, city gardens
• Character: Airy, star-shaped flowers with a refined, natural look