Organic Allium 'Gladiator' - Giant ornamental onion

Organic giant ornamental onion

The Allium 'Gladiator' is a popular ornamental onion with high decorative value. The name Gladiator refers to the bold, powerful presence of this plant. With a flower stem that can grow up to 120 cm tall, it is an ideal perennial for the back of garden borders. The large, spherical flower head consists of hundreds of lilac, star-shaped florets rich in nectar. This makes Allium 'Gladiator' especially attractive to bees and other pollinators. Excellent as a cut flower and for drying. The seed heads can be left standing as winter decoration or used in dried floral arrangements.

This plant closely resembles Allium 'Globemaster', but its flower is slightly smaller, about 15 cm in diameter. The broad, grey-green leaves often wither during blooming—so it's best to plant them among perennials to disguise the foliage. Combine Allium 'Gladiator' with plants like Salvia nemorosa to provide bees with even more nectar-rich options.

How, where and when do I plant Allium 'Gladiator' flower bulbs?

A Gladiator flower bulb needs a cold period. Therefore, plant it in the ground in the autumn from October to January. The planting depth is 2 to 3 times the flower bulb itself and the planting distance is 2 to 3 times the width of the flower bulb itself. Plant it in full sun or partial shade in a nutritious, water-permeable, preferably calcareous sandy soil.

Care

Leave the flower heads in place if you would like them to form seed. Once the foliage has died back, you can lift the bulbs and separate any offsets. Store the bulbs in a dry, well-ventilated place until October, then replant them. You can also leave the bulbs in the ground, where they can naturalise and return each year in suitable conditions.

Provide organic nutrients immediately upon planting and in spring before flowering for optimal results!

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Skal NL-BIO-01 certified: 109459

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Characteristics

Other allium species

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