Allium Azureum Blue Globe Ornamental Onion Bulbs
Best low-maintenance choice for gardeners seeking vibrant, pest-resistant summer color.
The Allium Azureum Blue Globe ornamental onion bulbs produce striking 1½-inch pompom flower heads filled with true-blue, star-shaped blooms. These flowers rise atop stiff stems reaching 20 inches tall, offering a modern appeal in the garden. Blooming in early summer, they are excellent for attracting butterflies and make fabulous fresh or dried cut flowers. As a Siberian native, this bulbous perennial is cold hardy to Zone 4 and is easy to grow. It thrives in full sun to partial shade with moist, well-drained soil, and is resistant to deer and rodents. These alliums naturalize well, making them perfect for drifts, mixed borders, or containers.
$23.95
Owner Satisfaction
4.6
/ 5
Category Rank
726
/ 3183
#726 in Plant & Flower Bulbs
Price vs Category Average
+2%
Above average
Pack Size
25
/ bulbs
Who it's for
- Gardeners seeking rare, vibrant blue accents for spring displays
- Homeowners managing gardens plagued by deer and small wildlife
- Busy gardeners wanting low-maintenance, pollinator-friendly perennial color
Who should skip it
- Designers prioritizing pristine, year-round foliage aesthetics
- Gardeners sensitive to strong, pungent botanical odors
- Minimalists preferring low-maintenance beds without frequent deadheading
Performance breakdown
Visual Impact
True-blue pompom blooms provide a rare, modern aesthetic for garden borders.
Hardiness Range
Broad adaptability across zones 4 through 9 ensures reliable seasonal performance.
Pest Resistance
Natural deterrent properties keep deer and rodents away from your display.
Maintenance Effort
Low-touch perennial growth makes these bulbs ideal for effortless naturalizing.
Pollinator Appeal
Star-shaped flowers act as a reliable magnet for local butterfly populations.
Floral Versatility
Stiff stems work beautifully for both fresh arrangements and dried displays.
Key Specs
Pack Size
25 bulbs
Mature Height
20 in
Mature Width
12 in
Hardiness Zones
4 - 9
Planting Depth
4 to 6 inches
Spacing
6 to 12 inches apart
Light Requirements
Full Sun, Part Shade
Features
- Produces true-blue, star-shaped blooms in early summer
- Attracts butterflies to the garden
- Excellent for use as cut flowers, fresh or dried
- Deer and rodent resistant
- Easy to grow and maintain
- Suitable for planting in large drifts, mixed beds, or containers
- Can be naturalized over time
What customers say
The sentiment centers on the exceptional quality of the bulbs and the striking aesthetic reliability. Gardeners consistently report successful sprouting and robust growth, confirming the vibrant, true blue color promised by the design. This dependable performance makes the Allium Azureum a highly valued addition, delivering significant visual impact with minimal effort. The overall consensus highlights a trustworthy product that reliably transforms garden spaces.
Know before you buy
For the most natural appearance, plant these bulbs in irregular drifts of at least 10 to 15 bulbs rather than in straight rows. Space them 6 to 12 inches apart to allow the foliage and stems to mingle naturally as they grow.
Yes, like most ornamental onions, Allium Azureum contains compounds that deer and rodents generally find unappealing. They are an excellent choice for gardens where wildlife pressure is a common concern.
These alliums perform very well in containers, provided the pot has excellent drainage. Ensure the container is deep enough to accommodate the 4 to 6-inch planting depth and keep the soil consistently moist but not waterlogged.
No, these bulbs are cold hardy down to Zone 4 and can remain in the ground year-round. They are native to Siberia and are well-adapted to surviving harsh winters in the soil.
To dry them, harvest the flower heads once they are fully open but before they begin to fade. Hang them upside down in a cool, dark, and well-ventilated area until they are completely crisp to the touch.
Allow the foliage to yellow and wither naturally before removing it. The leaves are busy absorbing sunlight to store energy in the bulb for next year's blooms, so cutting them back too early can weaken the plant.
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$24