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Helianthus annuus 'Giant Single'


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Key information

Plant type

Hardy annual

Flower colour






Skill level


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Plant details

Giant Single' is a tall-growing variety of the traditional easy-to-grow sunflower. The blooms have dark centres and attractive bright golden petals. These are held on tall stems which are capable of growing several metres. This is an ideal variety for children to grow if planted next to a wall or tall cane so that they can chart its progress as it grows. Encourage plants to grow vigorously by preparing the planting site well, with manure of fertiliser before planting. This variety features in the Gardeners' World Sunflower Trial 2004. After flowering leave the seed heads on the plant to feed wild birds.

Family: Asteraceae

Genus: Helianthus

Species: annuus

Cultivar: Giant Single

Plant type: Hardy annual

Flower colour: Yellow

Foliage colour: Mid-green

Feature: Flowers

Sun exposure: Full sun

Soil: Well-drained/light, Clay/heavy

Hardiness: Hardy

Skill level: Beginner

Height: 250cm

Spread: 40cm

Time to plant seeds: March to May

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