These are grown for its Mammoth flower size. Huge heads are Ideal for competitions and attract lots of butterflies. They are Ideal. for cut flowers too.
Pot Culture: Sunflowers can be sown directly into pots. Sow 5-6 seeds in an 8"pot and cover lightly. Sow the seeds 6 mm deep. Water lightly. Keep in shade till they germinate in about 10-12 days. Gradually exposed to full sun. Soil should be moist but not wet. Later keep 2-3 healthy seedlings in the pot and discard rest.
In Ground: To grow in ground, make seedlings first. Once the seedlings are 2-3 weeks old, transplant them into their fixed position in your garden. The spacing between plants should be 60 cm. Provide sufficient manure in the ground.
Watering should be done when the soil is dry. Keep it moist. During rains ensure there is no water logging. Feed Bahaar (liquid) fertilizer once in 15 days and later once buds appear feed Maxi grow fertilizer. will ensure more flowers. Continue once in 7 days till the end of last flowers. To keep the soil enriched, put Biogro (organic manure) once a month.
The flowering starts, from 80-90 days onwards and continues upto 5-8 weeks. The plant attains a height of 150-160 cms.