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Allium Schubertii

Allium Schubertii

Common name Schubertii Ornamental Onion
Latin name Allium schubertii
Quantity per bag 3 bulbs
Schubertii ornamental onion produces extraordinary airy flower heads composed of mauve-pink flowers carried on stems of varying lengths. It is one of the most distinctive alliums for sunny gardens.

It brings spectacular architectural interest to gardens with its unique flower heads. Its long-lasting blooms and decorative dried flowers extend seasonal interest for many months.

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Product information
Bulb
identification
Common nameSchubertii Ornamental Onion
Latin nameAllium schubertii
FamilyAmaryllidaceae
CyclePerennial
Bulb typeBulb
Quantity per pack3 bulbs
Product
description

Schubertii Ornamental Onion (Allium schubertii) is distinguished by its extraordinary airy, firework-shaped flower heads, composed of small mauve-pink flowers carried on stems of varying lengths. Blooming from May to June, it creates an artistic, graphic, and almost sculptural effect above its blue-green foliage. Reaching 40 to 60 cm in height, this bulbous perennial immediately draws attention without making plantings feel heavy. Hardy to Zone 4, it is well suited to Quebec gardens and continues to provide ornamental interest long after flowering thanks to its dried flower heads.

Plant the bulbs in fall at a depth of 10 to 15 cm, spacing them 20 to 25 cm apart. Schubertii ornamental onion prefers full sun and light, 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, it tolerates dry periods well. 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.

Perfect for contemporary gardens, rock gardens, perennial beds, containers, and artistic-style plantings, this allium creates a spectacular focal point. It pairs beautifully with sage, catmint, lavender, peonies, and ornamental grasses, which highlight its unusual form. Its numerous nectar-rich flowers attract bees, butterflies, and many other beneficial insects, helping support garden biodiversity. The flower heads are also exceptional in fresh or dried bouquets and retain their decorative shape for several months.

Main
benefit
Its spectacular firework-shaped flower heads create a unique artistic effect while attracting a wide variety of pollinators. They remain decorative long after flowering.
Garden
placement
Where to plant Perfect for contemporary gardens, rock gardens, perennial beds, and artistic-style plantings. Its firework-shaped flower heads create a spectacular display among spring perennials. Pair it with sage, ornamental grasses, lavender, and peonies to create original compositions. The dried flower heads remain decorative for several months.
Care level Easy
Planting
and care
ExposureFull sun
Planting periodFall
Planting depth10 to 15 cm (4 to 6 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 tolerates dry periods well.
Soil typeLight, perfectly drained soil. Avoid heavy or constantly wet soils.
Soil pHNeutral to slightly alkaline
FertilizationA light application of compost in spring is generally sufficient. Avoid excessive nitrogen fertilization, which encourages foliage growth rather than flowering.
Container
growing
Container growing is very easy in a pot at least 30 cm (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 for spectacular flowering. Water moderately during active growth, then allow the growing medium to dry during dormancy. Containers may be protected from extreme winter cold.
Seasonal
care
Leave the flowers to dry on the plant to extend their ornamental interest or harvest them for floral arrangements. 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 periodSpectacular firework-shaped flower heads appear in spring and attract numerous pollinators. They are exceptional in fresh or dried bouquets.
Flower colorMauve pink
HarvestNone
Companion plantsCatmint, sage, ornamental grasses, lavender, and peonies make excellent companion plants. They beautifully highlight its spectacular flowering.
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
Height40 to 60 cm (16 to 24 in)
Spread20 to 25 cm (8 to 10 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.

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