Due to their requirement for early spring sowing and warm sunshine this is a crop which traditionally has been grown in the more southerly parts of the UK. The standard types of sunflower have a seed-head that is too high for pheasants to reach easily and so the selection of dwarf and super dwarf varieties has improved in the utilisation of this crop. In most situations sunflowers are now grown in conjunction with many other game crops, either in mixtures or adjacent blocks. They provide highly nutritious seed of a high oil content that all game and song birds enjoy. The young seedlings are very vulnerable to slug attack, so a close eye must be kept on the newly planted crop.