Unwins Sunflower American Giant F1 Seeds (12 Seeds)

Go big this summer with Unwins Sunflower American Giant F1 giant in name and giant in reality. This spectacular variety produces enormous yellow flower heads on towering plants that can grow up to 5 metres tall, making it an unforgettable feature in borders, wildlife gardens, and sunny garden corners.

Despite its impressive height, American Giant is quick-growing with sturdy, strong stems, meaning it doesnt need staking in most situations. Simply sow, plant out, water, feed, and watch it shoot skyward. Its also a winner of the prestigious RHS Award of Garden Merit, as well as being pollinator-friendly, making it ideal for gardens that support bees and beneficial insects.

Key Features

• Huge yellow flower heads on plants up to 5m tall

• F1 Hybrid strong, vigorous growth

• Quick-growing and easy to establish

• Sturdy stems generally no staking required

• RHS Award of Garden Merit winner

• Pollinator-friendly and ideal for wildlife gardens

• Prefers a full sun position

Sowing & Flowering

Sowing Time: April May
Flowering Time: July October
Sow to Germination: 12 weeks
Sow to Flower: Approx. 35 months

Technical Specification

• SKU: 30210446

• Pack Quantity: 12 seeds

• Colour: Yellow

• Plant Height: 5m

• Spread: 45cm

• Plant Spacing: 45cm

• Sowing Depth: 1015mm

• Time to Germination: 12 weeks

• Time to Flower: 35 months

Why choose Keans Claremorris

• Trusted local store with knowledgeable staff

• Quality seed varieties selected for Irish gardens

• Excellent seasonal selection for pollinator-friendly planting, garden colour, and cut flowers