Allium Atropurpureum 3L Stunning Deep Purple Ornamental Onion

Bring architectural elegance and late-spring drama to your garden with Allium Atropurpureum, a hardy perennial bulb featuring striking deep purple-red flowers in compact, half-sphere clusters. These upright blooms sit atop tall, leafless stems and contrast beautifully with strap-shaped green foliage, making this clump-forming allium a standout feature in borders, rockeries, or containers.

Key Features

• Botanical Name: Allium Atropurpureum

• Family: Amaryllidaceae

• Flower Colour: Deep purple-red

• Flower Shape: Half-sphere umbels, ~5cm across

• Foliage: Strap-shaped, green, deciduous

• Habit: Clump-forming perennial

• Ultimate Height: 0.51m

• Ultimate Spread: 0.10.5m

• Hardiness: H5 hardy in most places, even severe winters

• Scent: Mild onion/garlic fragrance typical of alliums

Ideal Uses

• Perfect for perennial borders and mixed flower beds

• Great for rockeries and container planting

• Excellent cut flower for arrangements

• Adds height, colour, and structural interest in late spring/early summer

Growing Conditions

• Position: Full sun

• Soil: Moist but well-drained; tolerant of chalk, clay, loam, or sand

• Soil pH: Acid, neutral, or alkaline

• Aspect: South, East, or West-facing

• Exposure: Sheltered

Care Tips

• Plant bulbs in autumn, 1015cm deep

• Water regularly during growth, reduce after flowering

• Remove spent flower heads to maintain appearance

• Clumps can be divided every few years to encourage healthy growth

Why Choose Keans Claremorris?

• Trusted Irish garden centre with expert horticultural guidance

• High-quality bulbs selected for thriving in Irish conditions

• Fast and reliable nationwide delivery

• Helping you create colourful, low-maintenance, and long-lasting garden displays

Enhance your garden with Allium Atropurpureuma bold, elegant perennial that delivers striking purple blooms and sculptural interest year after year!