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Description
DESCRIPTION: Allium giganteum, known as the giant ornamental onion, is a truly majestic plant that brings a touch of architectural beauty to any garden. 🌸 Native to Central Asia, it produces tall, slender stems that can reach impressive heights of up to 150 centimeters (around 5 feet) 🌿, topped with large, perfectly spherical clusters of tiny star-shaped purple flowers. These globe-like blooms appear in late spring to early summer 🌞, usually from May to June, adding a dramatic burst of color and structure to the landscape just as many other spring flowers are fading. This plant flourishes best when placed in full sun ☀️, where it receives at least six hours of direct sunlight per day. It prefers well-drained soil and does not tolerate soggy conditions, which can cause the bulbs to rot. For those growing Allium giganteum from seed, patience is essential—germination can take several weeks, and it may take two to three years before the plant reaches flowering maturity ⏳. However, once established, it returns reliably year after year, drawing the eye with its impressive form and whimsical charm. 🐝 Its blooms are also a magnet for pollinators, attracting bees and butterflies that help to bring even more life to your garden.
STRIKING FEATURES: The inflorescence of Allium giganteum is a broad, airy sphere composed of hundreds of small star-shaped flowers, in a soft lilac-purple shade that is slightly lighter than more modern varieties like ‘Ambassador’ or ‘Globemaster’. Its shape is spherical, but with a more “transparent” and delicate appearance. The color is a bright lilac-purple. The flower head has a diameter of approximately 10–15 cm. The stem is tall, slender, and upright—often among the tallest of the ornamental alliums.
SIZE AND BLOOMING: Overall height: up to 150 cm. Flower head diameter: 10–15 cm. Blooming period: late spring (May to early June).
HOW TO GROW: Allium giganteum is hardy, long-lived, and remarkably dependable. Planting takes place in autumn, from September to December, with bulbs set at a depth of 15–20 cm. It thrives in full sun — essential for strong blooming — and prefers well-drained, light or sandy soil. Watering should be minimal, only when necessary, as the plant is sensitive to waterlogging. Maintenance is low: once planted, the bulbs can remain in the ground for years without needing to be lifted or divided, making it an ideal choice for low-maintenance gardens.
FOLIAGE: The foliage grows at the base of the plant and is fairly broad and flat. It tends to yellow before or during flowering, so it's best planted alongside perennials or ornamental grasses that can help conceal the fading leaves.
PACKAGE: The package contains 1 bulb of Allium giganteum. The bulbs have a circumference of 20/+ cm (about 7 cm in diameter). The packaging features a beautiful illustrative photo and includes planting and flowering information, making it an excellent gift idea.
SELECTION AND QUALITY: The bulbs come with a phytosanitary passport and undergo a strict quality control process to ensure splendid blooms from the first year.
AFTER-SALES ASSISTANCE: Customer satisfaction is our top priority. We are available to assist you with any questions or concerns regarding your purchase. You can contact us via the Amazon messaging platform or our dedicated WhatsApp line.