Roseum Allium

Common name Pink Ornamental Onion
Latin name Allium roseum
Quantity per bag 20 bulbs
Pink ornamental onion produces charming clusters of pale pink star-shaped flowers with darker centres. Its graceful habit adds a natural and elegant touch to rock gardens and borders.

It brightens gardens with its delicate flowering while requiring very little maintenance. Its hardiness and naturalizing ability make it an excellent bulbous perennial.

$7.99

Online price only.

Pay in 4 interest-free payments with
Share
Product information
Bulb
identification
Common namePink Ornamental Onion
Latin nameAllium roseum
FamilyAmaryllidaceae
CyclePerennial
Bulb typeBulb
Quantity per pack20 bulbs
Product
description

Rosy Dream Ornamental Onion (Allium oreophilum ‘Rosy Dream’) forms charming rounded flower clusters composed of small, soft pink blooms that appear from May to June. Rising above blue-green foliage, its delicate flowers add freshness and gentle colour to the garden without overpowering neighbouring plants. With its compact height of only 25 to 30 cm, this bulbous perennial is ideal for small spaces and creates beautiful accents at the front of flower beds. Extremely hardy to Zone 3, it reliably returns in Quebec gardens and can naturalize where conditions are favourable.

Plant the bulbs in fall at a depth of 8 to 10 cm, spacing them 10 to 15 cm apart. ‘Rosy Dream’ prefers full sun and light, fertile, perfectly drained soil with a neutral to slightly alkaline pH. Water lightly after planting, then moderately during active growth, allowing the soil to dry between waterings. Once established, the plant is highly drought tolerant. A light application of compost in spring is generally sufficient. After flowering, allow the foliage to turn completely yellow before cutting it back so the bulbs can replenish their reserves.

Ideal for borders, rock gardens, alpine gardens, containers, and naturalized plantings, this compact allium fits easily among perennials. It pairs beautifully with rock cress, bellflowers, catmint, lavender, and sedums, which highlight its delicate blooms. Its nectar-rich flowers attract bees, butterflies, and many other beneficial insects, helping support garden biodiversity. Over time, it can form attractive flowering colonies, while its small flower clusters are also excellent for fresh or dried bouquets.

Main
benefit
Its delicate pale pink flowers bring softness, lightness, and abundant blooms to borders while attracting a wide variety of pollinators. Its naturalizing habit creates beautiful colonies over time.
Garden
placement
Where to plant Perfect for rock gardens, borders, naturalized gardens, and cottage-style plantings. Its light habit creates beautiful natural scenes when paired with bellflowers, rock cress, lavender, and sedums. It naturalizes easily to form charming flowering colonies while attracting pollinators.
Care level Easy
Planting
and care
ExposureFull sun
Planting periodFall
Planting depth8 to 10 cm (3 to 4 in)
Rooting temperature15 to 18°C (59 to 64°F)
Hardiness zoneZone 4
WateringWater moderately during active growth, then allow the soil to dry slightly between waterings. Once established, it is highly drought tolerant.
Soil typeLight, well-drained, moderately fertile soil. Avoid heavy or constantly wet soils.
Soil pHNeutral to slightly alkaline
FertilizationA light application of compost in spring is generally sufficient. Avoid excessive fertilization, which encourages foliage growth rather than flowers.
Container
growing
Container growing is very easy in a pot at least 25 to 30 cm (10 to 12 in) deep with excellent drainage. Use a light potting mix enriched with compost and amended with sand to prevent water accumulation. Place the container in full sun to encourage abundant flowering. Water moderately during active growth, then allow the growing medium to dry during dormancy. Containers may remain outdoors if drainage is excellent.
Seasonal
care
Leave the flowers to dry on the plant to extend their ornamental interest or remove them after flowering. Wait until the foliage has dried completely before cutting it back. Water only during extended periods of drought. Avoid excess moisture during winter.
Bloom,
harvest
and garden
Bloom periodClusters of pale pink star-shaped flowers appear in spring and attract numerous pollinators. They are beautiful in fresh or dried bouquets.
Flower colorPale pink
HarvestNone
Companion plantsRock cress, bellflowers, catmint, sedums, and lavender make excellent companion plants. They beautifully complement its delicate pink flowers.
Plants to avoidThe main problems are poorly drained soils that encourage bulb rot and slugs that may damage young shoots. Good air circulation helps reduce the risk of disease.
Wildlife appealBees and pollinators
Size
and growth
Height30 to 40 cm (12 to 16 in)
Spread10 to 15 cm (4 to 6 in)
Growth rateModerate
Rooting / establishment21 to 35 days
Frequently asked questions
The availability of our bulbs, cloves, tubers, rhizomes, seeds and plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may only be available for a limited time, depending on their natural cycle, planting period or available stock. These product pages are designed to guide and inspire your plant choices for the garden, vegetable garden, landscaping, container growing or sustainable outdoor projects.