Allium Roseum
Size chart
Product Description - Allium Roseum
Allium roseum (Allium roseum), commonly known as rosy garlic or pink-flowered onion, is a charming Mediterranean species celebrated for its loose, airy umbels of 10–30 small, bell-shaped flowers in a soft, warm rosy-pink (ranging from pale blush to deeper rose) that hold their gentle colour perfectly for 4–5 weeks. The open, slightly fluttering clusters create a light, wildflower-like effect and are highly attractive to bees and butterflies.
The plant forms slender, graceful stems above narrow, grass-like foliage growing to a height of 30–50 cm (12–20 inches) with a spread of 15–25 cm. It spreads steadily by self-seeding and tiny bulbils, making it superb for naturalising in light grass, wild gardens, rockeries, or front-of-border drifts.
- Plant type: Bulbous perennial (species ornamental onion)
- Height: 30–50 cm
- Flower diameter: 5–8 cm (umbels)
- Flower colour: Soft rosy-pink (sometimes near-white with pink veins)
- Flowering period: Late spring – early summer (May–June)
- Fragrance: Very light onion scent only when crushed
Product Details - Allium Roseum
| Price per package | €2,66 |
|---|---|
| Subvarieties | Purple Alliums |
| Plant Height | 30-50 cm |
| Plant Size | 4/5 |
| Flower Colour | Bicolor |
| Indoor plant | No |
| Suitable as cutting flower | Yes |
| Hardiness Zone | Zone 4-5 |
| Leaf Colour | Green |
| Flowering Month | June |
How to Plant - Allium Roseum
Planting & Care Instructions
Ornamental alliums are hardy, low-maintenance perennial bulbs valued for their distinctive flower heads. They are ideal for borders, flower beds, pots and cut flowers. Planting depth and spacing should be adjusted according to the size of the bulb.
- Planting time: Plant the bulbs in autumn, from September to December, before the ground becomes deeply frozen. Most ornamental alliums flower from May to June, depending on the variety and local climate.
- Position & soil: Choose a position in full sun. Plant in loose, well-drained soil and avoid areas where water tends to collect.
- Planting depth & spacing: Place the bulbs with the pointed end facing upwards. For standard alliums, size 12/14 cm, plant approximately 10–20 cm deep and 15–30 cm apart. For giant alliums, size 18/20 cm, plant approximately 15–20 cm deep and 25–30 cm apart. For small alliums, size 5+ cm, plant approximately 5–10 cm deep and 7.5–10 cm apart.
- Watering: Water once after planting to settle the soil. During active growth, water when necessary if conditions are dry, but avoid waterlogging.
- Growing in containers: Use pots with drainage holes and a well-drained potting mix. Larger alliums require deeper and more spacious containers, while smaller varieties are well suited to compact pots and mixed plantings.
- After flowering: Allow the foliage to turn yellow and die back naturally before removing it. Faded flower heads can be removed or left in place for their decorative appearance.
- Returning each year: Most ornamental alliums are winter-hardy perennials and can return and multiply for many years when planted in suitable, well-drained conditions.
Delivery - Allium Roseum
Secure delivery across Europe
We deliver flower bulbs, seeds, perennials, roses and other plants to more than 30 countries across Europe. The standard delivery charge is added on orders depending on the country where you live.
To guarantee the best result and quality of our plants and bulbs, we dispatch all our orders at the right planting period. We monitor harvests in The Netherlands and weather conditions across Europe and start shipping our orders according to the following schedule:
- Summer Flowering Bulbs (dahlias, gladioli, begonias, etc.) - from 23 March until 1 July.
- Spring Flowering Bulbs (tulips, hyacinths, daffodils, etc.) - from 20 September until 1 December.
- Seeds and Garden Tools – all year round
- Roses, Perennials (except peonies), Bushes and other plants in pots - from 1 March until 1 June.
Product Reviews - Allium Roseum
What does the "Guarantee from Dutch-bulbs" include?
Quality guarantee. If the planting material does not meet quality standards.
A guarantee of variety. If the plant blooms in a different variety than the one you ordered.
A guarantee of grafting. If you have followed all the rules of cultivation, but the plant has not sprouted.
We promise quality or will refund you immediately if you are not satisfied.
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Your order will only be delivered once payment has been confirmed. Please note that only the person whose name and surname were entered on the website at the time of placing the order can receive the goods paid for by payment card.
Allium Roseum