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Allium rosenbachianum

Allium rosenbachianum
SKU: HC008526
per Bag of 3
No longer available this season.
Allium rosenbachianum are early bloomers in the late-spring parade of globe Allium. Unique and effortlessly elegant, they stand tall at 32-38" with 4" diameter dark-violet globes. Each globe has over 50 starry florets with darker mid-veins and white stamens. They can extend your season of enjoyment by blooming about 2 weeks ahead of the other globe Alliums (Ornamental Onions). Plant with white Mount Everest Alliums for lovely contrasting blooms.
key features
Botanical Name
Allium rosenbachianum
Growing Zones
Zone 6, Zone 7, Zone 8, Zone 9
Bee Friendly, Attracts Butterflies, Deer Resistant, Rabbit Resistant, Dried Flowers, Container Planting
Soil Moisture
Waterwise, Average
Light Requirements
Full Sun, Morning Sun & Afternoon Shade
Mature Height
20-24" tall
Bloom Time
Late spring


Allium rosenbachianum (Showy Persian Onion) are essential flowers for all Allium-loving gardeners. The purple globes, like Spanish exclamation points, draw the eye and bring a smile. Allium rosenbachianum is a hard-to-find heritage variety in cultivation since around 1894. Blooming two weeks ahead of the other large Allium, they’ll extend your enjoyment of one of our most unique garden flowers. Plant these Allium in groups of three or so in a sun to part-shade location in enriched, well-drained soil. They work well planted in a perennial bed where the perennials will grow in and cover the allium’s aging foliage. Great cut flowers too, they are favorites of bees, butterflies and other pollinators. Easy-to grow, they are drought tolerant, deer and rabbit resistant and are nearly pest and disease free. There is something spectacular about Allium’s architectural and colorful presence in the flower garden.