Alliums
Alliums are very versatile bulbs. Not only are they decorative in the garden, they are also rewarding subjects for flower arrangers.
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Aflatunense
M5000
An extremely popular, heirloom species of Allium – ‘Aflatunense’ produces umbels of purple-lilac flowers in May.
The handsome violet globes of allium Aflatunense sit proudly on straight stems up to 75cm tall in the border and are excellent for drying and using in seasonal arrangements.
Alliums are timeless, versatile plants which are as at home in a contemporary planting scheme, as they are in a traditional cottage garden border.
Plant the bulbs in full sun and where left undisturbed, they will naturalise over time. Underplant with textural perennials such as Hostas, Ferns, Heuchera and grasses which will hide any fading foliage.
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Angulosum
M5042
A summer-flowering Allium which produces fuzzy, soft-lilac blooms, darkening in colour as the season progresses from attractive mounds of foliage, which remain green all year round.
Allium ‘Angulosum’ is charmingly known as mouse garlic and has small, narrow bulbs which are edible.
Extremely attractive to bees and summer pollinators, allium ‘Angulosum’ is easy to grow and will return year after year adding architectural beauty to both modern and traditional gardens with its lavender-pink, bobbing drumsticks.
Angulosum makes a wonderful cut flower and cleverly extends Allium season, as the blooms appear later in summer than most other varieties.
Leave the flowers to fade naturally and they will add winter interest to your borders.
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Atropurpureum
M5001
A deliciously dark Allium with large, flattened globes of merlot-red topping tall, strong stems. Allium ‘Atropurpureum’ flowers during June, studding garden beds and borders with clusters of majestic, jewel-like blooms.
This Chelsea show winner is adored by bees and hoverflies and is invaluable for adding structure, colour and drama to the garden. Plant the bulbs through swishy grasses to create a simple, textured and contemporary look which will look brilliant for months, even as the blooms fade, bringing architectural interest during autumn and winter.
Allium Atropurpureum looks stunning against lofty umbellifers such as Cow parsley and Anthriscus ‘Ravenswing’, a lower storey of frilled Alchemilla mollis or Heuchera which will help to hide any fading foliage.
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Caeruleum
M5002
An unusual blue Allium, ‘Caeruleum’ bears compact heads of deep flax-blue flowers during June and July. A fine cultivar to enliven any modern planting scheme or traditional garden with bold structure and striking colour.
Plant Alliums in swathes or large groupings for a natural look and maximum impact. In full sun and on well-drained soil, the bulbs will happily multiply, providing an enhanced display year on year.
The allium Caeruleum blooms are attractive to summer pollinators and are useful for extending the season of interest as a late-flowering variety of the Allium family.
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Cameleon
M4989
Allium ‘Cameleon’ produces delicate flowerheads that gently fade from white to blush-pink, creating a soft watercolour effect through the late spring and early summer garden. Held on slender stems, the airy spherical blooms of allium ‘Cameleon’ bring movement, texture, and subtle colour to gravel gardens, modern borders, and naturalistic planting schemes.
As temperatures rise, the flower tones continue to soften and evolve, giving displays an ever-changing appearance full of light and elegance. Ideal for weaving through ornamental grasses and perennial planting, this graceful allium adds structure without heaviness and performs beautifully in sunny, well-drained positions.
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Carinatum ssp. Pulchellum
M5031
Allium Carinatum subsp. Pulchellum, also known as Keeled Garlic, is a graceful clump-forming perennial producing loose clusters of violet-pink star-shaped flowers on slender, arching stems through July and August. The delicate blooms of Allium carinatum subsp. pulchellum bring movement and light texture to sunny borders, gravel gardens, and naturalistic planting schemes, where they mix beautifully among grasses and late-summer perennials.
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Carinatum ssp. Pulchellum Album
M4987
Allium Carinatum subsp. pulchellum ‘Album’ produces elegant sprays of pure white, star-shaped flowers held on slender stems abover narrow grey-green foliage through midsummer. The airy blooms of Allium carinatum subsp. pulchellum ‘Album’ bring lightness and movement to sunny borders, gravel gardens, and naturalistic planting schemes, where the crisp white flowers contrast beautifully against green foliage and ornamental grasses.
Graceful and easy to grow, this refined allium thrives in a sunny, well-drained position and adds subtle texture and long-lasting seasonal interest to the garden.
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Carolinianum Rosy Dream
M4995
Charming Allium ‘Carolinianum Rosy Dream’ produces fluffy heads of soft lilac-pink flowers which add a feeling of summer romance to the garden with their gentle, yet structural floating flowers.
The fuzzy globes top smooth, straight stems up to 40cm tall and allium Carolinianum Rosy Dream look wonderful scattered through the front to mid border, rising up through grasses and mixed perennial planting.
Attractive to pollinators, this graceful, ornamental member of the onion family is most impactful when grown in clumps, or ribbons of pink in beds and large containers.
Thrives in full sun and well-drained, fertile soil.
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Christophii
M5003
Known as the ‘Star of Persia’, Allium ‘Christophii’ is an ever-popular, majestic Allium which flowers freely and without fail every June.
Large globes of star-shaped, amethyst flowers top strong and sturdy stems, making them wonderful for cutting and adding to arrangements as a fresh flower or dried seedhead.
A wonderful plant for bringing structure, shape and impactful colour to summer borders, Allium ‘Christophii’ has been granted a prestigious Award of Garden Merit by the RHS for its prize-winning qualities and looks.
Group the bulbs together, perhaps with other varieties for varied texture and height, in the border for a harmonious and eye-catching, early summer display.
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Cowanii
M5004
Fast becoming a florist favourite, Allium ‘Cowanii’ produces loose umbels of delicate white, star shaped blooms in May. The flowers also smell sweet, rather than oniony, as you might otherwise expect from a member of the Allium family.
Sometimes known as Allium Neapolitanum, this charming cultivar is easy to grow and looks best in snowy drifts, weaving through the front of a border where it will take your garden seamlessly from spring, into summer.
The bulbs of Allium ’Cowanii’ may also be grown in pots of fertile, very well-drained soil.
A space in full sun is best reserved for this pollinator-friendly spring gem.
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Firmament
M5005
Dark amethyst stars are produced in dense clusters, forming eye-catching spheres of purple on Allium ‘Firmament’.
A cross between Allium Atropurpureum and Christophii, this striking cultivar boasts the best qualities of both varieties, with tall, strong stems and densely packed, richly coloured flowers.
A brilliant choice for sunny summer borders and for cutting and arranging. Allium ‘Firmament’ looks fabulous in a prairie planting scheme, studding hazy drifts of perennial grasses with pops of purple.
Plant the bulbs in clusters or ribbons for a natural look and for the best impact. Well-drained soil and full sun are essential for this excellent Allium to thrive.
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Flavum
M5006
Mediterraneum Allium ‘Flavum’ is an unusual and prize-winning cultivar, producing loose umbels of delicate, lemon-yellow bells during the summer months. A wonderfully distinctive variety which is perfect for adding pops of colour and interest to borders and large containers with its sparkler-like, zesty blooms.
Thrives in full sun in any soil which is well-drained. Plants die back over the winter months, ready to emerge again in late spring.
Rare beauty Allium ‘Flavum’ has been granted an Award of Garden Merit from the RHS for its charming looks and perennial qualities.
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Giganteum
M5007
Show-stopping Allium ‘Giganteum’ forms impressively large heads of violet flowers which bloom during June. This wonderful variety adds instant wow-factor when the allium Giganteum blooms burst forth on ramrod straight stems, over a metre tall in the border.
The bulbs are excellent for naturalising in a sweeping mixed border, particularly effective when punctuating the zesty green foliage of Hostas, Euphorbia, Ferns and grasses with their vivid purple full stops.
Alliums are a gardeners favourite for unrivalled drama, structure and colour in the garden which announces the beginning of summer. Adored by pollinators, the nectar-rich blooms can be left on stems to fade, adding winter texture and interest.
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Gladiator
M5008
A brilliant and reliable Allium to enhance any early summer garden, ‘Gladiator’ bears large balls of opulent purple blooms during June on strong stems up to 1.5m tall.
A prestigious Award of Garden Merit has been granted to this strong cultivar for its fabulous garden qualities and show-stopping looks. Towering in the border above most other plants, allium ‘Gladiator’ is a handsome, architectural bloom to bring structure and bold colour into the garden as spring merges into summer.
Excellent as a cut flower, both as a vivid fresh bloom in large floral displays, and dried as a textural and striking seedhead in autumn and winter arrangements.
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Globemaster
M5009
A stately Allium bearing enormous heads of aster-violet in June. Allium ‘Globemaster’ enhances any early summer planting scheme in long-established, as well as modern gardens.
With stems reaching almost a metre in height, allium ‘Globemaster’ is best planted near the centre or back of a large, sweeping border where it will punctuate your perennial planting with huge mauve spheres.
A prestigious Award of Garden Merit has been given to this distinguished Allium by the RHS for excellent garden qualities, reliability and handsome looks.
Excellent as a cut flower for large-scale floral displays and installations. The seedheads can be hung to dry or left on the plants to bring garden interest in winter.
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Graceful Beauty
M5028
Dainty globes of sparkling white, star-like florets top slender stems on delightful Allium ‘Graceful Beauty’ during May and June, rising from a bed of grassy foliage.
The delicate flowers are extremely attractive to early summer pollinators and feature vivid purple stamens.
Plant the bulbs in large numbers for a wave of blushing-cream through your borders. A spot in full sun or part shade is best and well-drained soil is essential for Alliums to thrive and multiply naturally.
Allium ‘Graceful’ makes a charming cut flower, useful for adding shape and structure to bouquets and arrangements, just as it does in the garden.
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Karataviense
M5010
An unusual, low-growing Allium, ‘Karataviense’ adds bold structure and texture at the forefront of garden borders and is great for container planting.
Large globular heads of muted creamy-lavender flowers nestle amongst fleshy, flat and glaucous leaves with red margins. Foliage remains on the plants for most of the year, providing a long season of interest.
Stout and sturdy, purple-grey stems rise to just 20cm tall, making this heirloom allium Karataviense ideal for pots, rockeries, and gravel gardens. Best planted near the edge of a border or container where they can’t be missed.
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Miami
M5034
A fabulous, late-flowering Allium, ‘Miami’ produces striking blooms in deep, rich purple throughout July - perfect for extending the joyous ornamental Allium season. The unusual flowerheads form an umbellifer shape, as opposed to the regular Allium ‘globes’ more often seen in early summer gardens.
Popular for cutting, thanks to its eye-catching looks and long-lasting quality, eye-catching allium Miami produces long stems up to 80cm tall.
Plant the bubs towards the centre or back of a large border, in clusters for best effect. For a harmonious look, plant next to Allium ‘Angulosum’ and purple-toned summer perennials such as Salvias, Perovskia and Lavender.
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Moly Jeannine
M5041
Producing not one, but two flower stems per bulb, Allium ‘Moly Jeannine’ is a petite, yet impactful summer Allium in sunshine yellow.
Dainty, star-shaped flowers top wiry stems in clusters and are adored by bees and hoverflies. Useful for cutting for smaller, delicate arrangements and pretty bud vases, the flowers will last a week or longer in the vase. Allium ‘Moly Jeannine’ has been granted an Award of Garden Merit from the RHS for its exceptional qualities.
Plant the bulbs in groups near the front of a perennial border as a sunny, golden trim to illuminate garden edges.
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Mont Blanc
M4997
Pure white ornamental Allium ‘Mont Blanc’ brings a touch of class to the early summer garden. A wonderful contrast to purple Alliums and simply stunning in a fresh green and white planting scheme.
Stems up to a metre tall, allium Mont Blanc produce creamy-white spherical heads which burst into life during May and June and are a magnet for pollinators.
Plant the bulbs in full sun and in well-drained soil towards the front or centre of a large, sweeping border. Low-growing foliage plants such as Alchemilla mollis, Stachys byzantina and Hostas are useful for growing next to Alliums to hide any unsightly, fading foliage. Flowerheads can be left on the plants to fade gracefully and provide textural autumn and winter interest.
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Mount Everest
M5014
A majestic white Allium, ‘Mount Everest’ towers above most plants in the summer border, with straight and elegant stems, over a metre in height.
Pure white blooms with green stamens are clustered in a globe formation at the tips of stems, adding wonderful shape and a striking silhouette to garden spaces, complementing virtually any plants which surround them. Use this invaluable Allium towards the back of the border where it will hold a starring role for months on end. The heads of Allium ‘Mount Everest’, like many other large varieties, can be left on the plants to fade naturally, adding interest and texture during the winter months.
Excellent as a cut flower, both fresh and dried.
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Nigrum
M5015
A fine cultivar with semi-rounded heads of creamy-white flowers, Allium ‘Nigrum’ is commonly known as black or broadleaf garlic. Each star-like floret holds a shiny green ovary at its centre and a cluster of delicate stamens.
Excellent for dry and gravel gardens, pretty Allium ‘Nigrum’ thrives in full sun and well-drained, fertile soil. The bulbs also look wonderful grown in swathes to naturalise through grassy areas and are highly attractive to pollinators.
Native to the Middle East, this ornamental onion was traditionally used to aid the immune system.
Flowers during May and June, making Nigrum a wonderful bridging plant to bring interest during the seasonal crossover, sometimes called the ‘May gap’ in the gardening calendar.
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Ostara
M4998
Rich purple-red flowers dazzle and gleam in the early summer garden as they rise and bloom on sturdy stems during May and June.
Allium ‘Ostara’ is a cross between two other popular species of Allium – Atropurpureum and Karataviense and blends the best qualities of both varieties together with attractive, broad leaves and luscious burgundy flowers.
Plant allium Ostara bulbs near to the front or middle of a perennial border or in a large container situated in full sun.
The large and distinctive flowers are long lasting, excellent for cutting and highly attractive to pollinators.
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Purple Mix
M4993
A stunning, tonal mix of Allium bulbs to pep up early summer gardens.
This delightful collection of purple Alliums produces flowers with different sized heads in complementary shades and at varying heights. Perfect for threading through perennial borders in grouped clusters where they will settle in and multiply over the years.
The jewel-like spheres of Alliums are invaluable blooms for the garden during May and June, as spring crosses into summer and beds and borders can sometimes lack a little colour before summer plants burst into bloom.
The heads can be left on their stems to fade and dry out naturally, adding winter interest.
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Purple Rain
M5035
Huge flowerheads, up to 15cm across adorn slender straight stems on glamorous Allium ‘Purple Rain’.
A cross between Purple Sensation and Christophii, this dazzling cultivar has inherited the best qualities of both parents with an abundance of violet florets arranged in an interesting, open structure. Allium ‘Purple Rain’ has received a prestigious Award of Garden Merit from the RHS.
Tall stems make this variety excellent for cutting and using fresh in summer arrangements, and for drying and displaying as architectural seedheads.
Buds rocket up through the borders in late spring and burst into bloom during May and June.
Bulbs look best grouped together near the middle or back of the border for a striking and colourful display.
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Purple Sensation
M5016
A classy and classic cultivar - Allium ‘Purple Sensation’ produces densely clustered globes of glowing, deep-violet blooms, held aloft on straight and elegant stems. It is the variety which we perhaps envision most when we think of this early summer beauty.
Winner of an esteemed Award of Garden Merit from the Royal Horticultural Society, Allium ‘Purple Sensation’ is an ever-popular variety for good reason. Reliable, charming and extremely attractive to pollinators.
Plant the bulbs in borders or large containers where they can settle in and naturalise, providing an enhanced display year after year during May and June. Looks brilliant with lush foliage plants such as Hostas and Ferns which act as an interesting, complementary understorey and help to hide any fading Allium foliage.
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Red Mohican
M5036
Aptly named Allium ‘Red Mohican’ bears tufted heads of wine-red blooms with tiny white tips. The uniquely shaped flowers are an interesting contrast to other varieties of Allium and are slightly later flowering than most, usually blooming throughout July making them an excellent choice for extending the season.
Popular with bees, hoverflies and summer pollinators, this affable allium Red Mohican will spice up a summer border, adding height and texture and is excellent for picking.
Alliums thrive in a sunny position in the garden in well-drained, fertile soil where they can naturalise.
Suits both contemporary planting schemes and a traditional, cottage garden style.
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Schoenoprasum Forescate
M4999
A highly attractive form of large chive, with pinky-purple flowerheads in midsummer. Allium ‘Schoenoprasum Forescate’ rapidly forms large clusters of slim foliage and pretty flowerheads to punctuate a summer planting scheme.
Plant near to the front of a border or in ornamental pots where the charming blooms can be seen and will add neat shape, structure and colour.
The tufted umbels are adored by bees and pollinators and can be picked and used as a cut flower or edible bloom. Sprinkle the florets onto salads or use in cooked dishes to add a mild, oniony flavour.
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Schubertii
M5017
Showy Allium ‘Schubertii’ explodes into action during May and June with its large, sparkler-like blooms of mallow-purple. The tubular flowers are held out on long pedicles at varying lengths, creating a striking and impressive effect in the border.
This dramatic allium Schubertii is extremely popular for cutting and using in floral displays. Left to dry, it provides stunning textured material for winter interest in the garden and for decorative, ornamental use in the home, especially at Christmastime.
Plant the bulbs in well-drained soil in a spot in full sun. In colder regions, mulch the planting area in autumn to provide winter protection or bring pots undercover for the coldest months.
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Sphaerocephalon
M5018
Egg-shaped blooms bob in the summer breeze on eye-catching Allium ‘Sphaerocephalon’.
The compact ‘drumstick’ flowerheads rise up from the soil in late spring, enlarging in size until stems reach a final height of around 60cm tall. A fascinating transformation of colour takes place as the blooms mature, changing from bluish green to two-toned purple-crimson and green in a striking ombre effect. By the end of the flowering season in late summer, the maroon flowers have loosened up and are humming with bees.
Known as the round-headed leek, Allium ‘Sphaerocephalon’ is a popular, reliable variety which holds an Award of Garden Merit from the RHS.
Fabulous in gravel gardens, structured contemporary schemes and traditional borders.
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Summer Drummer
M5026
A majestic Allium which towers in the late-summer border at a height of almost 2 metres tall. Allium ‘Summer Drummer’ puts on a spectacular display, unmissable wherever the bulbs are planted.
Smooth grey stems hold the muted-mauve globes aloft during June and July, drawing in bees and hoverflies to land and feast on their nectar-rich florets. A sunny spot and fertile, well-drained soil suits this handsome allium Summer Drummer best – there it will settle happily, naturalising and putting on a stellar show for years to come.
Combine with other Allium bulbs for a long season of harmonious garden interest.
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Ursinum (Wild Garlic)
M4986
Allium Ursinum, commonly known as Wild Garlic, produces long, pointed bright green leaves with a fresh lily-like appearance, followed by clusters of delicate white star-shaped flowers held on distinctive triangular stems. The lightly scented blooms of Allium ursinum create a natural woodland feel, spreading gently through shaded gardens, damp borders, and informal planting areas during spring.
Ideal for naturalising beneath trees or along woodland edges, this attractive allium Ursinum and pollinator-friendly allium brings texture, movement, and seasonal charm to cooler parts of the garden.
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Two-Tone Mix
M5048
The Allium Two Tone Mix, featuring Moly Jeannine and Caeruleum, creates a vibrant tapestry in the garden. With the radiant yellow blooms of Moly Jeannine and the cool, azure hues of Caeruleum, this mix provides a striking contrast. Ideal for sunny spots and well-drained soil, these alliums bloom exuberantly, adding a lively and dynamic element to your garden.
Their contrasting colours and spherical shapes make them a captivating choice for borders and beds.
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Three-Tone Mix 1
M4990
This beautiful Allium Mixture combines soft blue, crisp white, and delicate pink flowerheads to create a harmonious late-spring display full of colour, contrast, and movement. Rising above borders on slender stems, the airy allium blooms sway gently in the breeze, bringing structure and natural rhythm to planting schemes without overwhelming the space.
Perfect for sunny borders, gravel gardens, and wildlife-friendly planting, this elegant allium blend is highly attractive to bees and pollinators while adding a refined, contemporary feel to the garden. Ideal for gardeners looking for effortless impact with a softer, more natural style.
