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Allium Party Balloons

Allium Party Balloons

Common name Party Balloons Ornamental Onion
Latin name Allium hybrid ‘Party Balloons’
Quantity per bag 1 bulb
Party Balloons ornamental onion produces large light mauve-pink spherical flower clusters carried on sturdy stems. Its upright habit brings height, lightness, and elegance to sunny gardens.

It creates an elegant architectural effect while providing an abundant nectar source for pollinators. Its long-lasting blooms brighten late spring gardens.

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Product information
Bulb
identification
Common nameParty Balloons Ornamental Onion
Latin nameAllium hybrid ‘Party Balloons’
FamilyAmaryllidaceae
CyclePerennial
Bulb typeBulb
Quantity per pack1 bulb
Product
description

Party Balloons Ornamental Onion (Allium hybrid ‘Party Balloons’) charms with its large, light mauve-pink spherical flower clusters carried on sturdy stems reaching 80 to 100 cm in height. Flowering from May to June, it resembles a cheerful bouquet of balloons floating above its blue-green foliage, creating an effect that is both airy, colourful, and architectural. This bulbous perennial adds striking vertical structure to garden beds without making them feel heavy. Hardy to Zone 4, it performs beautifully in Quebec gardens when planted in a sunny location with perfectly drained soil.

Plant the bulbs in fall at a depth of 15 to 20 cm, spacing them 20 to 30 cm apart. ‘Party Balloons’ 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, this allium 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.

Ideal for contemporary flower beds, borders, naturalistic gardens, and pollinator-friendly spaces, this allium pairs beautifully with peonies, sage, catmint, coneflowers, and ornamental grasses. Its large, colourful flower spheres create striking accents among perennials and add rhythm to plantings. Rich in nectar, the flowers attract bees, butterflies, and many other beneficial insects, helping support garden biodiversity. The flower clusters are also outstanding in fresh or dried bouquets and remain decorative for several months.

Main
benefit
Its large light mauve-pink flower spheres resemble a bouquet of balloons, creating spectacular vertical interest in flower beds. Its blooms attract a wide variety of pollinators while adding structure to the landscape.
Garden
placement
Where to plant Perfect for contemporary flower beds, naturalistic plantings, borders, and pollinator gardens. Its large flower spheres create spectacular vertical accents among perennials. Pair it with peonies, sage, ornamental grasses, and catmint to create elegant, colourful displays. The dried flowers remain decorative for several months.
Care level Easy
Planting
and care
ExposureFull sun
Planting periodFall
Planting depth15 to 20 cm (6 to 8 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, fertile, and 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 possible in a large pot at least 40 cm (16 in) deep with excellent drainage. Use a light potting mix enriched with compost and amended with sand to prevent excess moisture. Place the container in full sun to encourage abundant flowering. Water moderately during active growth and very little 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 dried bouquets. Wait until the foliage has dried completely before cutting it back. Water only during extended periods of drought. Avoid overly wet soil during winter.
Bloom,
harvest
and garden
Bloom periodLarge light mauve-pink flower clusters appear in late spring and attract numerous pollinators. They are outstanding in fresh or dried bouquets.
Flower colorLight mauve pink
HarvestNone
Companion plantsPeonies, catmint, sage, ornamental grasses, and coneflowers make excellent companion plants. They beautifully highlight its colourful blooms and upright habit.
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
Height80 to 100 cm (32 to 40 in)
Spread20 to 30 cm (8 to 12 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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