Sunflower 'Mammoth Russian' ( Helianthus annuus ), offered by the seed company WH Perron
The 'Mammoth Russian' sunflower is a spectacular variety known for its very large single yellow flowers and imposing stature. Reaching up to 3 metres (300 cm) in height, this garden giant is perfect for flowerbeds, cut flowers or as a source of edible seeds for humans and birds. Its bright blooms bring a majestic, sunny touch to outdoor spaces.
Maturity: 10 to 14 weeks
Germination: 7 to 14 days
Sowing temperature: 16 to 18°C
Height: 300 cm
Spread: 40 to 50 cm
Color: Yellow
Formulation: Naked
Latin name: Helianthus annuus
Use: Cut flowers, edible, flower beds
Flowering: July to September
Cultivation method:
Sow 'Mammoth Russian' sunflower seeds directly into the ground, 2-3cm deep, when the soil is warm (16-18°C). Space the plants 40-50cm apart to allow them to fully develop. Place them in a sunny location protected from strong winds to support their impressive growth. The seeds will germinate in 7-14 days, and the plant will reach maturity in 10-14 weeks, producing magnificent giant flowers.
Add dramatic dimension to your garden with the 'Mammoth Russian' sunflower, ideal for majestic landscapes and a generous harvest of tasty seeds!
