Under temperate climatic conditions, naturally occurring plants and agricultural crops provide a wide variety of flowers in springtime which tails off later in the year. Agricultural crops which honey bees use for foraging include canola/oilseed rape, fruits and vegetables.
Some provide better bee forage and are more nutritious in terms of nectar and pollen (protein content and quality) than others. Wind-pollinated crops, such as cereals (barley and wheat), do not produce nectar which attracts honey bees and other insects.
Besides all-year abundant availability, the quality and diversity of forage is important.
Good nutrition throughout the year has been identified as a key factor for good health of wild bees and honey bees alike. Everyone can contribute to the increased availability of bee forage, for example, by providing plants, shrubs or trees that are rich in nectar and pollen.