Nectaroscordum (Allium siculum) (Pack of 12)

Allium siculum (syn. Nectaroscordum siculum)

Add elegance and exotic flair to your late spring garden with the whimsical beauty of Nectaroscordum siculum, also known as Mediterranean Bells. These enchanting bulbs produce clusters of bell-shaped flowers in muted shades of ivory, green, and pinkish-maroon, arching gracefully from tall, slender stems before rising upright as they go to seed. Easy to grow, deer-resistant, and beloved by pollinators, it offers ornamental charm and ecological benefit in one striking package.

• USDA Zones: 5–10
• Bloom Time: Late Spring/Early Summer
• Height: 36"
• Planting Depth/Spacing: 5"/1–2"
• Deer Resistant: Yes

To learn more about the allium's upkeep and maintenance, please visit our blogs and videos below.

With its tall floral stalks and pendulous, umbrella-like clusters of bell-shaped blooms, it makes a unique architectural statement in perennial beds, borders, and naturalized plantings. Its color-shifting florets and upward-twisting seed heads create dynamic visual movement throughout the season, making this an unforgettable addition to your spring bulb collection.

Key Characteristics and Benefits of Allium siculum (Nectaroscordum)

• Pollinator Friendly: Attracts bees and other beneficial insects during a key transition between spring and summer bloom cycles.
• Deer and Rodent Resistant: Emits a mild onion fragrance that naturally repels common garden pests.
• Low Maintenance: Drought tolerant and pest resistant with minimal care requirements.
• Extended Visual Interest: Decorative seed heads provide architectural value even after flowering ends.
• Unusual Form: Offers a distinctive bell-flower silhouette unlike any other allium species.

Growing Allium siculum Bulbs

Allium siculum bulbs are easy to grow and flourish in many soil types, making them ideal for low-maintenance and drought-tolerant gardens.

Climate and Soil Requirements

Hardy in USDA Zones 5–10, these bulbs prefer well-drained soil with full to partial sun and adapt to varied pH levels and garden styles.

Planting Time and Depth

Plant in fall, 4–6 weeks before frost, about 5 inches deep and 1–2 inches apart, with the pointed end up and grouped for visual impact.

Sunlight and Watering

They thrive in full sun but tolerate light shade and need only light watering after planting and during prolonged dry spells.

Care and Maintenance

Allow the foliage to yellow and die back naturally after blooming, and consider leaving seed heads for visual interest or dried arrangements.

For more tips on caring for flower bulbs, explore our complete Flower Bulb Growing Guide .

Multiple High-Quality Brands for Greater Choice

At Grow Organic, we proudly offer Nectaroscordum (Allium siculum) bulbs from a carefully curated selection of trusted brands. By partnering with multiple premium growers, we ensure our customers enjoy a broader range of bulb sizes, origins, and growing practices—including sustainable and organic options.

Design Ideas and Landscape Uses

Allium siculum bulbs add graceful height and texture to pathways, borders, and cottage gardens, blending well with grasses, iris, and low perennials like geranium and nepeta.

For bold contrast, pair with spherical alliums or foxgloves, or use them in cutting gardens for elegant fresh or dried floral arrangements.

Complementing Other Bulbs

Nectaroscordum siculum complements late tulips, Spanish bluebells, and allium ‘Purple Sensation’ for layered spring displays with height and texture.

As summer perennials grow in, the bulb’s fading foliage becomes unobtrusive, maintaining a tidy and attractive garden appearance.

Explore even more seasonal color for your garden with our Pollinator Flowers.