Allium Firmament Ornamental Onion Bulbs
Allium Firmament Ornamental Onion Bulbs
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.
Fall Shipping Schedule
Fall Shipping Schedule and Zone Opening Earliest Ship Dates
Shipping For | Earliest Ship Dates |
---|---|
Zones 1–6 | Most products begin shipping mid-September |
Zones 7–13 | Most products begin shipping late September |
Peony | Begins shipping early October to all zones |





Grow Zone
5 - 8
Mature Height
36
Mature Width
8
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 Firmament Ornamental Onion Bulbs
Allium Firmament is a dazzling addition to any garden, known for its starry purple blooms that add a touch of celestial beauty to garden beds, borders, and containers. These exquisite flowers create a stunning visual effect, resembling a burst of stars against the green foliage.
Allium Firmament produces large, spherical flower heads made up of numerous tiny, star-shaped florets. The vibrant purple 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 adding vertical interest and drama to the garden.
Growing and planting Allium Firmament is easy. These plants thrive in well-drained soil and full sun to part shade. Plant the bulbs in the fall, about 6-8 inches deep and 8 inches apart, to ensure a healthy and vibrant display the following spring. Allium Firmament is drought-tolerant and deer-resistant, making it a low maintenance garden choice.
In addition to their visual appeal, Allium Firmament flowers attract beneficial pollinators like bees and butterflies, contributing to a healthy garden ecosystem. Their long-lasting blooms also make excellent cut flowers, adding a touch of elegance to indoor floral arrangements.
Add a touch of celestial beauty and height to the garden with Allium Firmament. Its starry purple blooms make a stunning visual impact, providing lasting beauty and elegance.
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 Bulb 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: 44224-PK-6
Genus: Allium
Species: giganteum
Variety: Firmament
Item Form: Bulb
Bloom Color: Dark Purple, Black
Habit: Upright
Light Requirements: Full SunPart Shade
Moisture Requirements: Moist, well-drained
Bloom Start: Early Summer
Bloom End: Early Summer
Uses:- Beds
- Border
- Containers
- Cut Flowers
- Butterfly Lovers
- Easy Care Plants
State Shipping Restrictions: GU, PR, VI