You are now on the AHDB Horticulture and Potatoes website.
Please click here to access the main AHDB website and other sectors.
Please click here to access the main AHDB website and other sectors.
Find out why your Primula crop is developing brown leaf margins even when it is getting plenty of nutrients and growing well
If you grow petunia or primula crops, read our guide to identifying and avoiding common nutrient problems
Here’s how to recognise leaf scorch disease in narcissus and understand how it spreads and develops.
Find information on the biology and symptoms of leaf scorch in narcissus.