Snailmythbusters part III,even though it starting to look more like slug mythbusters.Anyway,a while ago a story appeared in the news that caffeine was deadly for snails and slugs.And of course the media had a field day with making up headlines like:"snails and slugs prefer decaf".The basic idea is that caffeine works as a slug repellent,not coffee as such.In fact the percentage of caffeine found in coffee grounds is so low that it won't harm slugs and snails a bit.You would need a 2 % concentration of caffeine to get any results,and I do hope your coffee doesn't contain that!
Coffee grounds are not bad for your garden though,and make,when thinly spread a good mulch.
As a slugs and snail repellent it's:Myth busted.The slugs in my garden were even attracted to it and started to eat it!A good link is :Coffee and slugs
