I have worked with A.D.R. Bulbs for almost 5 years now, and my company has sourced bulbs with them for longer than that. Communication is great - from ordering, to deliveries, to follow-ups on final product. I love the quality of the product as well as the service. We plant nearly 100,000 bulbs and A.D.R. keeps the whole process easy for us!

Louise Licata , Bland Landscaping Co.

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Allium Miniature 'Triquetrum'

Name: Allium Miniature 'Triquetrum' Three-cornered leek
Price: $57.75

Three-cornered leek

Allium triquetrum, commonly known as three-cornered leek, reaches 12 to 18 inches tall, featuring delicate ¾ inch white bell-shaped flowers with a green stripe down each petal. Blooming in late spring to early summer, it thrives in part shade and moist, well-drained soil, showing drought tolerance and strong resistance to deer while attracting pollinators. Its slender, three-angled stems release a mild garlic scent when crushed. Ideal for naturalizing in woodland settings, borders, and rock gardens, it pairs well with ferns and shade-loving perennials.

Bin Box of 250 Bulbs, Size 5+

SALE! $43.31
~~reg: $57.75~~

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When should I plant Allium Miniature 'Triquetrum'?

Growing and Maintenance Tips for Allium Miniature 'Triquetrum'

Timing: Plant in fall before the ground freezes to ensure proper root development. Ideal soil temperature for planting is 60°F or colder.
Location: Choose a sunny, well-drained spot—poor drainage can cause bulb rot.
Depth & Spacing: Bury bulbs two to three times their height and space them six to twelve inches apart for optimal growth.
Soil: Maintain a pH of 6 to 7 and enrich with organic matter for better drainage.
Watering: Keep soil moist but not soggy during initial growth; once established, alliums are drought-tolerant.
Foliage Management: Leaves yellow after blooming—plant among perennials to disguise fading foliage.
Deadheading: Remove spent flowers to prevent self-seeding unless you want naturalized clusters.
Fertilization: Apply a balanced fertilizer in early spring to support strong blooms.
Pest & Disease Resistance: Alliums are deer and rabbit resistant but avoid planting in areas with excessive moisture to prevent fungal issues.
Crop Rotation: Change planting locations yearly to prevent soil-borne diseases.