Hi Aisling, last year I had the worst case of slugs imaginable. Every seed I sowed in the garden was eaten by slugs. Every plant start and seedling I planted out was completely destroyed. The only plants that managed to hang on by a
thread were those in planters on my patio--and even then I was going out at night with a light and a pair of scissors (so gross!). I tried beer traps,
coffee grounds, bran, crushed eggshells--nothing worked. So I completely sympathize. I was not willing to buy the "hard stuff" though my neighbors do--and we discovered our resident hedgehog dead because of it, with her little baby wandering around looking for her. So slug poison is the worst thing, in my opinion; I value the lives of our hedgehog friends more than my hostas.
But I digress. In the end, I had to write off the vegetable and annual flower garden for last year. It was a bitter pill, but in the end I accepted it. However, it also spurred me to set up preventative measures for the future. I built a small ornamental
pond for frogs and toads. I let my flock of ten
chickens range through the entire garden, to find and eat slugs (normally they are confined to their own section of the property)--I let them do this right up to this spring when I started planting again. I planted more perennials: some ornamental, some wildlife-attracting/bird-friendly, and some edible, but none that slugs like (no hostas!). Last year I still had a fruit harvest, as the slugs did not touch the berry bushes or fruit
trees. I also still had eggs every day, and I still had flowers from my roses and other shrubs. So my garden still produced a yield, even if I didn't get vegetables or my usual cut flowers.
And I just have to accept that there will be slug damage. It is not something I will be able to stop, and slugs are a useful part of the ecosystem: they're food for many different species, like the above mentioned frogs and hedgehogs. In fact, when weeding next to my patio this morning, I noticed several slugs hiding out; I left the pile of weeds on the side with the slugs exposed, and went into my kitchen, and almost immediately a blackbird swooped down and began pecking them up. So in the end, I have changed my view of slugs, and am building my
permaculture garden with the aim of not eliminating them, but living with them.