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Helianthus annuus 'Bicentenary'
© Deeproot Plant Base
common name: Sunflower
dry soil, moist soil
preferred soil pH: neutral-alkaline
minimum temp: 0°C
USDA zone: 7 to 10
Soft, silvery grey-green foliage. Rich golden yellow and bronze bicoloured flowers about 15cm across, on branching stems in summer.
Fertile neutral to slightly alkaline, moist, well-drained soil. Full sun.
Good for use at the back of borders and also suitable for cutting.
Named to celibrate the bicentenary of the Royal Horticultural Society in 2004. Raised by Thompson & Morgan.