The June Gap refers to a dearth of nectar forage

Forage (honeybee)

For bees, their forage or food supply consists of nectar and pollen from blooming plants within flight range. The forage sources for honey bees are an important consideration for beekeepers. In order to determine where to locate hives for maximum honey production and brood one must consider the...

 for bees in June in the United Kingdom and Ireland.

The June Gap is important because typically, the number of bees and hence energy requirement in the colony has built up significantly by the time the dearth occurs.
Some plants which can help provide nectar in this gap are Cotoneaster

Cotoneaster

Cotoneaster is a genus of woody plants in the rose family, Rosaceae, native to the Palaearctic region , with a strong concentration of diversity in the genus in the mountains of southwestern China and the Himalayas...

and the closely related Pyracantha

Pyracantha

Pyracantha is a genus of thorny evergreen large shrubs in the family Rosaceae, with common names Firethorn or Pyracantha. They are native to an area extending from Southeast Europe east to Southeast Asia, resemble and are related to Cotoneaster, but have serrated leaf margins and numerous thorns...

.

See also

• Beekeeping in the United Kingdom
  Beekeeping in the United Kingdom
  Beekeeping in the United KingdomIn the winter of 2008, about 20% of the UK's bees died. The losses were highest in the north of England and lowest in the east...
  
  
• Beekeeping in Ireland
  Beekeeping in Ireland
  -Organisations:The Federation of Irish Beekeepers' Associations is the association of beekeeping associations in Ireland.It is notable for its monthly publication, An Beachaire, and its unique summer course held at Gormanston, Co. Meath in Gormanston College...
  
  
• Forage (honeybee)
  Forage (honeybee)
  For bees, their forage or food supply consists of nectar and pollen from blooming plants within flight range. The forage sources for honey bees are an important consideration for beekeepers. In order to determine where to locate hives for maximum honey production and brood one must consider the...
  
  
• Honeydew source
  Honeydew source
  This is a list of honeydew sources. Honeydew is a sugary excretion from plant sap sucking insects such as aphids or scales. There are many trees that are hosts to aphids and scale insects that produce honeydew-Honeydew sources:-References:...
  
  
• List of honey plants
• Pollen source
  Pollen source
  The term pollen source is often used in the context of beekeeping and refers to flowering plants as a source of pollen for bees or other insects. Bees collect pollen as a protein source to raise their brood. For the plant, the pollinizer, this can be an important mechanism for sexual reproduction,...