Description
Add real architectural drama to your borders with Giant Allium Giganteum seeds, the tallest of the ornamental onions. Each heirloom, non-GMO seed grows into a sturdy stem topped with a globe of hundreds of tiny star-shaped purple florets, floating up to 4 feet above the foliage. These pollinator-friendly perennial bulbs return year after year, making them a favourite for cottage gardens, cut-flower beds and low-maintenance landscapes across US growing zones.
Thank you for reading this post, don't forget to subscribe!Why Gardeners Love Giant Allium Giganteum
- Show-stopping height: stems reach 3–4 ft, perfect for the back of a sunny border.
- Long-lasting colour: vivid violet-purple globes hold their shape for weeks and dry beautifully.
- Bee & butterfly magnet: nectar-rich blooms support local pollinators.
- Deer & rodent resistant: the onion family scent keeps browsers away.
- Heirloom & non-GMO: open-pollinated seeds you can save and re-sow.
How to Grow Allium Giganteum From Seed
Sow seeds in autumn or early spring in a sunny, well-drained spot. Barely cover the seed, keep lightly moist, and be patient — alliums establish a bulb in year one and reward you with towering blooms in following seasons. They thrive in USDA zones 4–8 and tolerate poor soil once established.
Frequently Asked Questions
How tall does Allium Giganteum grow?
Mature plants typically reach 3 to 4 feet tall, with flower globes 4–6 inches wide, making it the tallest ornamental allium.
When do giant alliums bloom?
Expect large purple blooms in late spring to early summer, once bulbs are established after the first season.
Are Allium Giganteum seeds beginner friendly?
Yes. They need little care beyond full sun and well-drained soil, and their onion scent naturally deters deer and rodents.
How many seeds are in a packet?
Each packet contains a generous count of fresh, hand-checked heirloom seeds ready for planting.
Order Giant Allium Giganteum seeds online today with fast shipping across the USA and grow a garden centrepiece that comes back every year.
