Read practical advice
Explore straightforward guides for choosing, using and caring for garden products.
Visit the Advice CentreOutdoor plants
Product information
Everything useful in one place, with the most important information kept separate from the buying controls above.
About this product
Allium nectaroscordum siculum
Allium nectaroscordum siculum, commonly known as ornamental onion, is an ornamental perennial chosen for its reliable performance and decorative effect in garden borders or containers. It contributes colour, texture, or structure depending on the variety.
After around five years of growth, this plant typically reaches: Generally 50–90 cm tall with a spread of 20–30 cm after 5 years.
Recommended compost for planting: Plant in a gritty, well-draining compost to keep bulbs dry through winter.
Key Features:
- Habit: Herbaceous perennial forming an attractive clump or spreading mound.
- Season of interest: Provides colour or foliage interest during the main growing season.
- Garden uses: Suitable for mixed borders, perennial beds, and many varieties also perform well in containers.
- Maintenance: Generally low maintenance; remove spent flowers and tidy old growth as needed.
Allium nectaroscordum siculum is a dependable choice for adding long-lasting interest and character to planting schemes.
Plant Details
| Flowering Season | May to June |
|---|
Growing Guide
| Sunlight Exposure | Full sun to light or partial shade |
|---|
Plant Highlights
- Pollinator Friendly: Nectar-rich pendulous bell flowers attract bees and butterflies in early summer.
Growing & care
- Plant type
- perennial
- Position & light
- Full sun· Partial shade
- Soil & drainage
- Well drained
- Mature size
- 90cm high· 30cm wide
- Flowering
- Cream· Pink· Purple· Green· Multicolour
- Foliage
- deciduous
Choose with confidence
Find the right plant for your space
Use the Plant Finder, practical advice or our in-store team before deciding.
See it before choosing
Visit Easy Garden to compare products in person and speak with our team.
Plan your visit