Sunflowers are grown as striated varieties which are used unpeeled for birdseed and hulled for human consumption and black seeded varieties for oil extraction. They are planted using single grain sowing with 70cm row spacing. Sowing six to seven grains/m² makes for ideal plant spacing. Meanwhile, hybrids are used almost exclusively. The main focus is on emergence, mating and harvest. In between, they are easy and undemanding. Except for seed dressing and herbicides, little plant protection is used. Slug pellets are usually applied to protect young seedlings. Hares feeding on crops during delayed juvenile development and birds feeding on almost mature flower heads are notable problems.