Height: 2-6' (60cm-2m)
Flowering Time: Summer
Flower Colour: Yellow, orange, maroon

Botanical Classification:


Angiospermae (Angiosperms)
Subclass: Dicotyledonae (Dicotyledons)
Superorder: Asteridae (Daisy Superorder)
Order: Asterales (Daisy Order)
Family: Asteraceae (Daisy Family)
Genus: Helianthus (Sunflower)
Species: annuus (annual)
Helianthus annuus

Helianthus annuus must be one of the most popular summer annuals. It is grown by children and adults because it is fast growing and needs almost no attention to produce its plate-sized flowers on tall plants, usually with yellow petals surrounding a large brown centre. New varieties have been produced with flowers in all shades from lime green, through yellows and oranges, to mahogany, with both single and double blooms.

In some places, it is grown as a crop, sometimes as a cut flower, but mainly for its seeds, which are used to produce cooking oil and as a healthy snack, as well as for bird and animal feed. In gardens, the seedheads also attract wild birds in autumn.


Harvesting and Growing from Seed:


Inside (4 days)
Outside (3 days)

Seed Pod There is no seedpod. The seeds are packed together tightly in the centre of the calyx.

Seed The seeds are large, often striped, tear drops. There are many seeds in the seedhead.

Seedling The seedling is large, with rounded seed leaves. The first true leaves are pointed.

(You can check the meaning of any technical terms new to you in the Botany section of the site)

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