Giant Onion Allium Giganteum Flowering Seeds For Planting in backyard gardening and ornamental borders

Allium Giganteum, commonly known as Giant Onion, is a perennial flowering plant celebrated for its large, spherical purple flower heads and striking architectural presence. Perfect for backyard gardens and ornamental borders, it adds height, color, and elegance to garden beds and decorative outdoor spaces. Giant Onion thrives in well-drained soil with full sunlight, making it ideal for both garden beds and container planting.

Features

• Produces large, globe-shaped purple blooms
• Ideal for backyard gardens and ornamental borders
• Perennial flowering plant with tall, sturdy stems
• Non-GMO seeds with strong germination
• Thrives in full sunlight and well-drained soil
• Low-maintenance ornamental plant
• Suitable for garden beds, borders, and container planting

Specifications

• Botanical Name: Allium Giganteum
• Common Name (US): Giant Onion
• Plant Type: Perennial flowering plant
• Height: 90–150 cm (3–5 feet)
• Spread: 30–40 cm (12–16 inches)
• Flower Color: Purple
• Light Requirements: Full sun
• Soil Type: Well-drained garden or container soil
• Soil pH: Slightly acidic to neutral (6.0–7.0)
• Watering: Moderate; keep soil evenly moist
• Hardiness Zones: USDA Zones 4–8
• Sowing Depth: 1 cm
• Germination Time: 14–28 days at 20–25°C
• Blooming Season: Late spring to early summer
• Uses: Backyard gardens, ornamental borders, garden beds, container planting
• Germination Rate: High-quality, viable seeds

Planting Guide

• Sow seeds in well-draining garden or container soil.
• Plant seeds 1 cm deep and maintain moderate soil moisture.
• Place garden beds or containers in full sunlight.
• Germination occurs in 14–28 days at 20–25°C.
• Transplant seedlings to garden beds, borders, or containers once strong.
• Space plants 30–40 cm apart for healthy growth.
• Water regularly, keeping soil moist but not waterlogged.
• Combine with other ornamental plants for a visually striking garden display.