Allium Giganteum Ornamental Onion Bulb
Allium Giganteum Ornamental Onion Bulb
Zone compatibility details
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Zone compatibility details
This variety’s zone range
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My hardiness zone
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The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatibility range of this variety before ordering.
Spring Shipping Schedule
Spring Shipping Schedule and Zone Opening Earliest Ship Dates
Note: At Park Seed, we are committed to shipping healthy live plants at the ideal planting time for your zone. In order to ensure our plants are shipped at the optimal conditions, we regularly adjust our shipping timeframes as needed. The below table reflects our current estimate of timing for rose, live plant and bulb shipping this season.
| Zone | Bareroot Roses | Container Roses | Plants & Bulbs | Sweet Potato & Avocado | Citrus | Blooming Blocks |
|---|---|---|---|---|---|---|
| 1-3 | Early-Mid May | Mid May | Mid May | Late May-Mid June | Early-Mid May | Early-Mid May |
| 4-5 | Early-Mid Apr | Late Apr-Early May | Late Apr-Early May | Mid-Late May | Late Apr-Early May | Early-Mid May |
| 6 | Mid-Late Mar | Mid-Late Apr | Mid-Late Apr | Early-Mid May | Early-Mid Apr | Early-Mid May |
| 7 | Early-Mid Mar | Mid-Late Apr | Late Mar-Early Apr | Late Apr-Mid May | Early-Mid Apr | Early-Mid May |
| 8 | Mid-Late Feb | Mid-Late Apr | Late Mar-Early Apr | Mid-Late Apr | Early-Mid Apr | Early-Mid May |
| 9-13* | Late Jan-Mid Feb | Mid-Late Apr | Late Mar-Early Apr | Mid-Late Apr | Early-Mid Apr | Early-Mid May |

Grow Zone
5 - 8
Mature Height
36
Mature Width
12
Sun / Shade
Full Sun and Part Shade
Bloom Size
need bloom size meta
Tomato Fruit Set
Days To Maturity
Fruit Weight
Soil Tolerance
Moisture
Moist, well-drained
Description / Allium Giganteum Ornamental Onion Bulb
Allium Giganteum is a magnificent addition to any garden, renowned for its giant, globe-shaped blooms that create a stunning visual impact. These distinct towering flowers, reaching up to 3 feet in height, are perfect for adding height and drama to containers, garden beds, and borders.
The round flower heads of Allium Giganteum are composed of numerous tiny, star-shaped florets, typically in vibrant shades of purple. These large, eye-catching blooms appear in late spring to early summer, providing a spectacular display that lasts for several weeks. The flowers sit atop tall, sturdy stems, making them an excellent choice for the back of the border or as a statement piece in the garden.
Allium Giganteum plants thrive in well-drained soil and full sun. Plant the bulbs in the fall, about 5-6 inches deep and 9-12 inches apart, for proper growth and a healthy display. Allium Giganteum is drought-tolerant and deer-resistant, ideal for your low-maintenance garden.
These alliums are beautiful and beneficial to your garden's ecosystem. Their nectar-rich blooms attract pollinators like bees and butterflies, supporting a healthy and vibrant garden. Additionally, Allium Giganteum makes excellent cut flowers. Their long-lasting blooms retain their form and color, giving floral arrangements a dash of drama and elegance.
Add grandeur and sophistication to your outdoor spaces with Allium Giganteum. Its towering height and striking blooms make it a breathtaking display that is sure to impress.
Learn more about bulb planting with expert tips and advice from Park Seed. Whether you're looking to add vibrant color to your garden or cultivate a stunning floral display, our Bulb Planting Chart and blos/park-seed-blog/bulb-care-instructionsgBulb Care Instructions offer insightful guidance on how to plant, nurture, and enjoy your blooms to their fullest potential.
The right supplies make bulb planting and care a breeze. Find customized supplies for bulb gardening.
Product Details
SKU: 08007
Genus: Allium
Species: giganteum
Item Form: Bulb
Bloom Color: Purple
Habit: Upright
Light Requirements: Full SunPart Shade
Moisture Requirements: Moist, well-drained
Bloom Start: Late Spring
Bloom End: Early Summer
Uses:- Beds
- Border
- Containers
- Cut Flowers
- Butterfly Lovers
- Easy Care Plants
State Shipping Restrictions: AK, GU, HI, OR, PR, VI, WA