Growing Non-GMO Purple Sensation Allium Flower Bulbs

To ensure successful growth, plant the bulbs in the fall, about 6-8 inches deep (roughly 2-3 times the bulb's diameter). This timing allows the bulbs to establish roots before the onset of winter and then bloom in late spring to early summer. Alliums can be treated as annuals in regions with winters that are too cold (zone 2) or areas without a winter dormancy period (9-10). They will need to be replanted each year in these situations after being put through a cold treatment.

These alliums prefer well-drained, sandy to loamy soils with a neutral to slightly alkaline pH. Good drainage is crucial, as sitting in waterlogged soil can cause the bulbs to rot. Plant the bulbs about 12 inches apart to give them ample space to grow and ensure proper air circulation. This spacing helps prevent diseases and allows the plants to establish strong root systems.

Allium Purple Sensation requires full sun to partial shade, thriving best in bright, direct sunlight for at least 6 hours a day. During the growing season, keep the soil moderately moist but avoid overwatering. Once established, alliums are quite drought-tolerant and rarely need supplemental watering beyond local rainfall. However, consistent moisture during their active growth period helps promote larger blooms.

This allium variety blooms in late spring to early summer, producing impressive purple spherical flower heads. Deadheading, or removing spent flowers, is not necessary for alliums, as they do not rebloom. To improve perennial blooming power, allow the foliage to die back naturally after blooming, which helps the bulbs store energy for the next growing season. Cutting back the foliage prematurely can weaken the bulbs.

To maintain healthy plants and robust blooms, fertilize the bulbs at planting time with a balanced, slow-release fertilizer. During the growing season, a light application of compost or a balanced fertilizer can provide additional nutrients that might be lacking. Regularly check for common pests like onion flies and aphids, and treat infestations promptly with appropriate controls.

Purple Sensation Allium in the Flower Garden

Allium Purple Sensation is an exciting flower to add to any garden. It undoubtedly adds a whimsical feel to its surroundings. It is much loved by many pollinators, including native bees and butterflies, and you can often find it grouped with other flowers, such as lilies, tulips, daisies, and more!

Landscape Use of Purple Sensation Allium

Allium Purple Sensation is primarily used in the landscape as a focal point due to its tall, showy, purple, spherical blooms that add vertical interest and structural elegance to gardens. It is ideal for borders and beds, providing a dramatic accent when planted in groups or as a single specimen. Its upright growth habit and robust height make it perfect for creating visual interest and depth, particularly in mixed borders or as part of a mass planting scheme to create a cohesive, eye-catching display.

About Purple Sensation Allium Garden Bulbs

Not intended for culinary use.

Purple Sensation Alliums have won the Royal Horticultural Society’s Award of Garden Merit for their beauty, hardiness, and elegance.

The blooms of Allium Purple Sensation are quite large, typically reaching about 6 inches (15 cm) in diameter​

Its beautiful purple blooms are a favorite among pollinators, adding both beauty and ecological value to your garden.

While primarily used in the landscape, Allium Purple Sensation also makes an excellent cut flower due to its long-lasting blooms. For cut flower arrangements, harvest the flowers when the heads are fully developed but not yet open. Cut the stems in the early morning and place them in water immediately to ensure freshness.​

Try a floral arrangement featuring allium flowers by filling a vase with ruscus foliage, fern fronds, blue cornflowers, and white baby’s breath. Then add 3-5 full, purple, allium heads as the focal. You will not be able to take your eyes away!

Make Planting Bulbs Easy with a Bulb Planter Hand Tool!

Stories From Our Gardeners

"For those looking to cultivate a whimsical-feeling garden, you cannot pass over alliums as a main tool. Other good choices for a whimsical garden scene include sweet peas, ranunculus, cosmos, and snapdragons."

- Lara Wadsworth, True Leaf Market Writer

Purple Sensation Allium Flower Bulbs Per Package:

• 3 Bulb Bag

Non-GMO Purple Sensation Allium Bulbs are available for Fast Free Shipping on qualifying orders.