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Irish Florists > Flowers > Sunflower

Sunflower / Helianthus

Sunflower Description

The Sunflower is a very popular hardy annual flowering plant with gardeners. In latter years it has also become a florist's favourite. There is a wider variety of sunflowers available than many people realise. The classic image of sunflowers is of a single flower head on a very tall stem with view leaves however shorter varieties are available as are varieties with double bloom heads.

Sunflowers are now available in classic yellow, orange, red and cream. Helianthus provides an ideal backdrop to any garden flower border that has the space.

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Cultivation of Sunflower Plants

Sunflower Blooms

Sunflower seeds should be sown in early spring into their final flowering position. Chooses a sunny site that has good drainage. Sow at least two seeds in each position and weed out the weaker seedlings leaving only the strongest to grow on.

The plants should be thinned out to about 30 to 45 cm apart from each other.

All varieties of Sunflower require staking with robust canes to prevent wind damage.

Deadheading will prolong the flowering season and will prevent self-seeding.

Popular Varieties of Sunflower

The following lists some popular varieties of Sunflower.

Lemon Queen Yellow flower heads, brown centre, good for cutting
Autumn Sunshine

Yellow, bronze red blossoms, mediums sized flowers

Sunspot Golden flowers, yellow/green centres, miniature
Italian White Cream blooms, black centre
Music Box Mixed

yellow, cream flowers, low growing

Teddy Bear Gold double flowers, dwarf variety
Orange Sun Apricot orange blossoms, 1m tall

Sunflower Pests and Diseases

Helianthus can be prone to mould in wet conditions especially late in the flowering season.

Height 60cm to 3m

Sunflower - Scientific Classification

Planting distance: 30 to 45cm Kingdom Plantae
Flowers from late summer to early autumn Order Asterales
Well-drained soil Family Asteraceae
Sunny position Genus Helianthus
Hardy annual    
Flowers Index Cornflower Hyacinth Pot Marigold
African Daisy Crocus Lily Primula
Ageratum Daffodil Lily of the Valley Snapdragon
Alstroemeria Dahlia Lobelia Snowdrop
Anemone Daisy Marigold Stock
Babys Breath Delphinium Pansy Sunflower
Begonia Forget-me-Not Pelargonium Sweet Alyssum
Bells of Ireland Freesia Petunia Sweet Pea
Busy Lizzie Gladiolus Phlox Tulip
Chrysanthemum Hollyhock Poppy Wallflower

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