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Helianthus annuus 'Russian Giant'


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Key information

Plant type

Hardy annual

Flower colour






Skill level


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Plant details

Helianthus, known as sunflowers due to the way the flower heads follow the light from the sun, come in a large range, from the popular and common giant, to a multitude of smaller varieties, most of which are yellow and include double flowered forms. Helianthus annuus is the larger species, with broad and bristly, heart-shaped leaves, producing flower heads that grow upto 30cm wide. All Helianthus should be planted in a sunny position, with moist but well drained soil. Helianthus annuus 'Russian Giant' produces large, bright yellow flowers and is useful for hiding unsightly fences or walls as it is particularly tall.

Family: Asteraceae

Genus: Helianthus

Species: annuus

Cultivar: Russian Giant

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: 30cm

Time to plant seeds: March to May

Flowering period: July to September

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