Allium Seeds – Giant

Allium ‘Giant’ is a striking ornamental plant admired for its towering stems and large, globe-shaped blooms made up of hundreds of tiny purple florets. These stunning flowers create a dramatic statement in any garden, adding texture, color, and height. Alliums are long-lasting, low-maintenance, and known to attract pollinators such as bees and butterflies. Perfect for borders, rock gardens, and floral arrangements, Giant Allium offers a bold, architectural presence that enhances any landscape design.

Features:

• Produces large, spherical clusters of vivid purple blooms.

• Excellent choice for garden borders and landscaping.

• Attracts pollinators like bees and butterflies.

• Resistant to deer and rabbits.

• Long-lasting blooms that dry beautifully for indoor decoration.

• Low maintenance and highly adaptable to various soil conditions.

Specifications:

• Scientific Name: Allium giganteum

• Common Name (US): Ornamental Onion

• Plant Type: Perennial (grown from bulbs or seeds)

• Bloom Color: Purple

• Bloom Shape: Large globe-shaped clusters (6–8 inches wide)

• Plant Height: 36–48 inches (90–120 cm)

• Sunlight Requirement: Full Sun to Partial Shade

• Soil Type: Well-drained, sandy or loamy soil

• Watering: Moderate; avoid waterlogging

• Germination Time: 14–21 days

• Days to Maturity: Approximately 100–120 days

• Sowing Method: Start indoors 8–10 weeks before last frost; transplant outdoors after frost risk has passed

• Spacing: 8–12 inches apart

• Growing Season: Spring to Summer

• USDA Hardiness Zones: 4–9

• Best Planting Months (by Zone):

  • Zones 4–5: April to May

  • Zones 6–7: March to April

  • Zones 8–9: February to March

• Use: Borders, rock gardens, landscape features, and cut flower arrangements