Sunflower Mammoth Russian

Sunflower ‘Mammoth Russian’ ( Helianthus annuus ), offered by the seed company WH Perron

The ‘Mammoth Russian’ sunflower is a spectacular variety renowned for its very large, single yellow flowers and imposing stature. Reaching up to 3 meters (300 cm) in height, this garden giant is perfect for flower beds, cut flowers, or as a source of edible seeds for humans and birds. Its vibrant 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
Uses: Cut flowers, edible flowers, flower beds
Flowering: July to September

Cultivation method:

Sow ‘Mammoth Russian’ sunflower seeds directly outdoors, at a depth of 2 to 3 cm, once the soil has warmed up (16 to 18C). Space the plants 40 to 50 cm apart to allow them to develop fully. Place them in a sunny location sheltered from strong winds to support their impressive growth. The seeds will germinate in 7 to 14 days, and the plant will reach maturity in 10 to 14 weeks, producing magnificent giant flowers.

Add a spectacular dimension to your garden with the ‘Mammoth Russian’ sunflower, ideal for majestic landscapes and a generous harvest of tasty seeds!