Blue ornamental onion (Allium caeruleum) – 160 flower bulbs (size 4/5)

Blue ornamental onion (Allium caeruleum) blooms in blue from June through July. With 160 bulbs in this package, you will cover approximately 4 m². Ornamental onions bear globe-shaped flower heads on tall stems and are a popular source of nectar for bees and butterflies. Use them in borders among perennials, gravel gardens, and large pots; the spent bulbs remain decorative. Bulb size 4/5 indicates how many centimeters the bulbs measure in circumference; a larger bulb contains more reserves for blooming.

Characteristics

• Indoor or outdoor: Outdoor plant – for garden, balcony and terrace
• Botanical name: Allium caeruleum
• Quantity: 160 bulbs
• Bulb size: 4/5
• Flower color: blue
• Blooming period: June–July
• Planting time: September through November
• Planting depth: 8–10 cm
• Planting distance: approx. 15 cm (enough for approximately 4 m²)
• Location: sun
• Winter hardiness: hardy
• Pets: toxic to cats and dogs

Planting and care

Plant the bulbs 8–10 cm deep with the tip facing up, in well-drained soil. Leave the spent flower heads in place: they dry decoratively and add structure to the border until autumn. Also read our tips on watering and the correct location.