Leaf edge scorch in Primula

Primulas are a popular autumn/winter bedding crop that grow well in the UK, but they can suffer with brown leaf margins which is often called “leaf edge scorch”. The symptoms are not reversible and can result in a poor-quality product.

On these pages you will find information to help you understand the problem, including:

• How to recognise the symptoms of leaf edge scorch in primula
• What are the causes of leaf edge scorch in primula
• How to help avoid leaf edge scorch in primula

What is leaf edge scorch? 

The symptoms are:

• Brown leaf edges where the leaf is dying or dead, this is also called necrosis or necrotic tissue.
• Younger leaves are often affected with the problem showing on the leaves as they expand.

The problem looks similar to tip burn seen in other crops such as lettuce.

Leaf edge scorch symptoms in primula

Understanding the cause will help you to avoid problems in the crop. See our quick guide to identifying possible causes.

How to prevent leaf edge scorch in primula

Our best practise advice on how to avoid problems with leaf edge scorch in primula.

How to monitor crops

Monitoring plants and the glasshouse environment is an important part of avoiding nutrient management problems. Read our page on monitoring crops for advice on this issue.