Sunflowers are beloved as summer annuals. Learn more about the different varieties of sunflowers, how to care for them, and ...

In comparison, giant sunflower types like ‘Mammoth Grey Stripe’ can take 120 days to mature. Most seed packets don’t include information about when the sunflower seeds will be ready to harvest.

Syngenta Biotechnology China-led research, with partners in the U.S., France, the UK, Chile, the Netherlands, Argentina, and ...

All 4000 packets of giant sunflower have now gone. Thousands of people applied online and if you were one of the lucky few to be successful, you should receive your free packet of seed within the ...

“These are one of the best types to grow if you want to eat your sunflower and harvest the seeds,” says Lucy. As the name suggests, giant sunflowers can grow extremely tall and usually have ...

Seed spacing depends on the sunflower variety: Dwarf (2-5 feet tall): plant seeds 6 inches apart. Semi-dwarf (5-8): plant seeds 12 inches apart Giant (8-10): plant seeds 24 inches apart Cover the ...