organic seeds for

growers' success
Premium organic seeds
Full traceability
High germination
Zonnebloem, grootbloemig – Helianthus annuus

Sunflower, large-flowered

Helianthus annuus


Need seeds?

Do you have any questions about this variety, or would you like to receive a quotation for organic seeds? Simply click here to drop us an e-mail and we'll make sure to respond quickly.

De Bolster is committed to providing organic growers with premium quality seed of the best varieties. Whether you are a professional grower, distributor or home garden seed supplier, we'll be happy to serve you.


Sunflower (large flower yellow) is the classic sunflower with an, mostly, unbranched stem and big yellow flowers with a dark brown heart. These big sunflowers can grow up to over 2 meters high! The big black seeds are eatable and can be picked from the middle of September. The ripe seeds are loose and can be picked directly. The large sunflower is an excellent plant for bees!

Quick facts
Seeds per gram    :   10 seeds
Plant spacing    :   40x40 cm
Position    :   sun
Plant height    :   200-220 cm
Bee-friendly    :   will attract bees & butterflies
Flowering    :   July - September