In this article, we’ll explore a selection of our favourite Ornamental Allium varieties that will really elevate your garden this spring and summer. And, whilst the best time to plant allium bulbs is autumn, you can buy ones growing in pots right now… and very soon, from Dig too! Watch this space.

Allium giganteum:


Towering over the garden at 150-180cm, Allium giganteum is one of the most iconic ornamental allium species. Sporting large, spherical flower heads atop tall stems, this variety commands attention with its intense purple blooms. Planted in autumn for a spring to early summer display, Allium giganteum thrives in well-drained soil and full sun, making it a standout feature in borders or as focal points in mixed perennial beds.

Allium ‘Purple Sensation’


True to its name, Allium ‘Purple Sensation’; never fails to captivate with its bold and vibrant hue. This popular cultivar produces dense clusters of deep purple flowers on sturdy stems, creating a stunning visual impact in the garden. Ideal for mass planting or as accents in flower beds, ‘Purple Sensation’ blooms in late spring to early summer, attracting bees and butterflies with its irresistible charm.

Allium ‘Globemaster’


Renowned for its impressive size and architectural beauty, Allium ‘Globemaster’ is a showstopper in any garden. Boasting enormous flower heads that can reach up to 10 inches in diameter, this cultivar commands attention with its striking presence. The rich purple blooms emerge atop sturdy stems, creating a captivating display from late spring to early summer. Plant ‘Globemaster’; in well-drained soil and full sun for optimal growth and bloom performance.

Allium ‘Mount Everest’


Tightly packed spherical umbels of 50 or more white, star-shaped flowers appear on upright, ribbed stems in early summer, above the strap-shaped foliage, which starts to die back before the flowers emerge. ‘Mount Everest’; is a tall allium at 120cm with an outstanding architectural form that we love just as much, if not more, than the more standard purple varieties.

Allium christophii ‘Star of Persia’


With its otherworldly appearance, Allium christophii, also known as the ‘Star of Persia’, adds a touch of celestial beauty to the garden. This unique variety produces large, silvery-purple flower heads comprised of star-shaped florets, creating a mesmerizing effect reminiscent of exploding fireworks.

Allium schubertii


Allium schubertii is a true conversation starter with its unconventional and eye-catching appearance. Featuring clusters of tiny, rose-pink florets atop wiry stems, this variety forms intricate, fireworks-like flower heads that command attention in the garden.

We love the versatility of Ornamental Alliums and the massive impact they bring to any outdoor space – they’re easy to grow, take up very little space, are super hardy and look after themselves year on year. Whether you like those with purple or white globes of flowers, or more dramatic varieties like schubertii, there’s sure to be a variety that suits your taste and outdoor space.

Be sure to keep an eye on new developments at Dig – they’ll be on sale very soon alongside our Instant Beds and Bespoke Designs.