Befruitful has commented: Have used coffee grounds extensively this year to deter slugs. They worked well for a time, but then didn’t work any longer. I can’t make out whether that was because of caking, making it easier to crawl over or because the smell had faded, or some other reason. What do you think?
Hi Befruitful Thanks for feeding back to TopVeg on your experience with coffee grounds. I am sure it is because of the caking – slugs don’t seem to like crawling over dry powder or grit. If I can’t find any soot (much preferred solution!) I put a ring of very fine gravel round my plants. It is amazing how it keeps them off. Happy growing! TopVeg
Have other vegetable gardeners found that coffee grounds deter slugs?