
Persistent weedy climber of fields and vineyards flowering all summer, giving bees nectar and pale pollen on warm, humid days.
The white or pink funnel-shaped flowers of field bindweed open in the morning and close in the afternoon. Nectar is secreted from a ring-shaped gland at the base of the flower, and the honey bee easily enters the short funnel. Secretion becomes noticeable in warm, humid weather and in irrigated fields; in dry heat it falls sharply. Pollen loads are pale.
From May to September it flowers without a break in fields, vineyards, gardens and along roadsides. Its long flowering gives bees a small but steady food supply during the summer dearth.
In Turkey it is not harvested as a separate honey; it goes into mixed summer honey. In some irrigated areas of eastern Europe and Central Asia it is mentioned as an important summer source.
With its deep roots it is a very hard weed to get rid of, and fields are treated heavily with herbicides. Near sprayed fields, take care during the periods when bees are visiting these flowers.