Allium consists of bulbous herbaceous perennials characterized by a pronounced onion or garlic aroma. They feature linear, strap-like, or cylindrical leaves that arise from the base. The flowers, which can be star-shaped or bell-shaped, are arranged in an umbel atop a stem that lacks leaves.

Allium caesium 'Summer Sky'

Allium caesium 'Tashkent'

Allium caesium 'Wine'

Allium caesium 'Zaamin'

Allium caesium tall

Allium caespitosum

Allium callimischon

Allium callimischon subsp. callimischon

This bulbous perennial reaches a height of 35 cm and features slender, grass-like leaves that can grow up to 30 cm long. It produces thin stems that support loose clusters of flowers, measuring 2.5 cm across. Each cluster can contain as many as 25 cup-shaped blooms, which are white or pale pink adorned with maroon spots, blooming in the autumn.

Allium callimischon subsp. haemostictum

Allium campanulatum

Allium canadense is a bulbous perennial native to North America, reaching heights of up to 45 cm. This plant develops grass-like clumps and produces rounded clusters of star-shaped blooms in shades of pink or white, arranged in umbels. The flowers may appear alone or in combination with bulbils and typically emerge from late spring through summer. It is well-suited for casual garden settings.

Allium canadense

Allium canadense var. fraseri

Allium canadense var. mobilense

Allium candolleanum

Allium cardiostemon

Allium caricoides

Allium carinatum is a bulbous perennial that grows to approximately 60 cm tall. It features narrow, mid-green leaves that can reach lengths of up to 8 cm. In midsummer, it produces loose clusters of bell-shaped purple flowers, each measuring around 5 cm in diameter, and these may also include small bulbils. This species thrives in informal garden settings and can spread rapidly.

Allium carinatum

This perennial bulb forms clumps quickly and reaches a height of up to 60 cm. It is nearly evergreen and features narrow leaves at the base of the stem. In midsummer, it produces new foliage alongside clusters of rich purple, bell-shaped flowers that grow in dense, elongated umbels.

Allium carinatum subsp. pulchellum

Allium carinatum subsp. pulchellum 'Bill Baker'

Allium carinatum subsp. pulchellum 'Olympic Mist'

Allium carinatum subsp. pulchellum 'Tubergen'

Allium carinatum subsp. pulchellum Tubergen's form

This perennial plant forms clumps and can reach up to 60 cm in height. It has narrow leaves situated at the base of the stem, remaining almost evergreen throughout the year. In midsummer, it produces white, bell-shaped flowers arranged in dense, elongated umbels, accompanied by newly emerging leaves.

Allium carinatum subsp. pulchellum f. album

Allium carolinianum is a bulbous perennial characterized by its flat, strap-like, mid-green foliage. In late spring and early summer, it produces compact spherical clusters of flowers, which can be pale red, purple-red, or white, atop upright stems reaching up to 40 cm in height.

Allium carolinianum

Allium carolinianum 'Rosy Beauty'

Allium carolinianum 'Rosy Dream' is a bulbous perennial characterized by slender, strap-like leaves of a mid-green hue. In late spring and early summer, it produces compact, spherical clusters of purple-pink flowers atop upright stems that reach a height of 40 cm.

Allium carolinianum 'Rosy Dream'

Allium caspium

Allium caspium subsp. baissunense

Allium cassium

Allium cassium subsp. hirtellum

Allium cepa is the foundational species from which numerous cultivars of onion, shallot, and spring onion have been developed. It features hollow, fleshy leaves that are green or blue-green and can be consumed when they are young. The bulb's size, shape, and color will differ based on the specific cultivar.

Allium cepa

Allium cepa 'A1'

Allium cepa 'Agostana'

Allium cepa 'Agrotw A5'PBR

Allium cepa 'Agrotw Cml'PBR

Allium cepa 'Ajax'

Allium cepa 'Alamo'

Allium cepa 'Alpha'PBR

Allium cepa 'Alvara'PBR

Allium cepa 'Amai A10'PBR

Allium cepa 'Apache' PBR features a rich deep purple skin and offers a mild taste along with a crunchy texture. This variety matures quickly, allowing for harvest as soon as six weeks after sowing. It thrives in both garden beds and containers, making it versatile for various growing conditions.

Allium cepa 'Apache'PBR

Allium cepa 'Asian Queen'

Allium cepa 'Autumn Gold Improved' is a bulbous perennial cultivated primarily for its edible bulbs. It features erect, bluish-green foliage and yields smooth, round white bulbs that can reach approximately 8 cm in diameter, encased in a light brown skin. Harvesting occurs in late summer to early autumn.

Allium cepa 'Autumn Gold Improved'

Allium cepa 'Autumn Triumph'

Allium cepa 'Banana' is an elongated shallot characterized by its light brown skin and robust flavor. This variety is commonly known as the ‘banana’ type or echalion.

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