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Product Description
Bring beauty and bounty to your garden with our premium Allium Giganteum Flower Seeds—a top choice for gardeners of all levels! Whether you're looking to create a stunning floral display or simply enjoy the satisfaction of growing from seed, these high-quality seeds offer excellent germination rates and reliable performance. Perfect for home gardens, raised beds, or container planting, they’re as versatile as they are vibrant. Even if you're just starting out, you’ll find these seeds easy to plant and rewarding to grow.
Our seeds are carefully selected for their vigor and purity, giving you a head start on a thriving garden. Growing your own plants is not only fun and therapeutic—it’s also a smart way to enjoy fresh produce or breathtaking blooms right outside your door. From the joy of watching your first sprout to the delight of a full-grown harvest or floral showstopper, every stage brings something special. So go ahead—dig in, get your hands dirty, and watch your garden dreams take root!

Life Cycle
Perennial
Planting Season
Fall
Growth Habit
Upright, clumping
Flavor Profile
Onion-like (not for eating)
Plant Characteristics
Tall stems, globe blooms
Use
Ornamental, cut flowers
Growing Conditions
Well-drained, fertile soil
Harvest Advantages
Long stems, showy blooms
Plant Resistance
Deer, rodent resistant
Allium giganteum
Seed Names
Allium Giganteum, Giant Allium
Seed Type
Open-pollinated, non-GMO
Allium Giganteum, or Giant Allium, is a striking ornamental known for its towering height and dramatic globe-shaped purple flowers. Blooming in late spring to early summer, these showstoppers are perfect for borders and pollinator gardens. Though part of the onion family, they’re grown purely for their bold aesthetic appeal.
Light Requirement
Full sun
Planting Depth
1/4 inch
Sowing Method
Outdoors or cold frame
Plant Spacing
12–15 inches
Days to Maturity
210–365 days
Soil Preparation
Cold stratify 60 days
Hardiness Zones
5–9
Water Needs
Low to moderate
Planting Season
Fall
Seed Count
Recommended Coverage
100
Up to 40 sq. ft.
500
Up to 200 sq. ft.
1000
Up to 400 sq. ft.
Water Yellow Rocketcress (Barbarea vulgaris) Flower plants when the top inch of soil feels dry. Avoid waterlogging en as it may harm the roots.
Yes, Yellow Rocketcress (Barbarea vulgaris) Flower blooms are known to attract bees, butterflies, and other pollinators en making them excellent for garden biodiversity.
Yellow Rocketcress (Barbarea vulgaris) Flower can be either annual or perennial depending on the variety en so check the specific seed packet for details.
Typically en Yellow Rocketcress (Barbarea vulgaris) Flower seeds germinate within 7 to 14 days under optimal temperature and moisture conditions.
Yellow Rocketcress (Barbarea vulgaris) Flower plants can reach varying heights depending on the variety en usually between 1 to 3 feet when fully grown.
These plants add such an elegant touch to my backyard. The flowers are a deep purple, and the height they reach is incredible. They were easy to plant and grew beautifully.
I�ve never seen flowers this size before! These Allium Giganteum flowers really do make a statement. They�re a bit more work than your typical plants, but the result is worth it.
I am so impressed with the size and vibrancy of these Allium Giganteum flowers! They really are giants and make a bold statement in my flower beds. Can�t wait to see them next year.
I planted these Allium Giganteum seeds last spring and waited patiently. They finally bloomed into massive, stunning flowers. The purple spheres are such a striking addition to my garden. Highly recommend if you�re looking for something unique!
The flowers were a bit slow to sprout, but when they did, they were absolutely gorgeous. I love how big and bold they look in the garden. Just make sure you have some patience.