So if you want your raspberries to feed you then we recommend you first look after your canes nutrition needs.

General Condition

• Raspberries are hungry plants!
• Yellowing leaves can be a sign of nutrient deficiency.
• Heavy soil, waterlogging, drought alkaline or chalky soil can also cause yellowing.
• Older plants are often worse – replace after 10 years.

Specific Deficiency

• Nitrogen deficiency causes yellow leaves and debilitates plants.
• Phosphorous  deficiency causes slow growth and dull leaves.
• Potassium deficiency causes browning leaf edges and poor fruiting.
• Magnesium deficiency is common on light sandy soil or where high potassium feed has been over used. Foliar feed with Epsom salts 2 or 3 times .

Treatments

• Best treated with foliar feed sprayed on to leaves.
• If yellowing is persistent it may be iron deficiency so apply sequestrene.
• Maintain good hygiene and help water retention with an autumn mulch.
• Don’t over feed or underfeed or plants will blow a raspberry at you!