Your gardening questions answered: Are there any slug-proof plants?
18.05.2024 - 05:09
/ irishtimes.com
/ Fionnuala Fallon
Q: We have a small back garden that includes an old wall covered in ivy. I love the ivy, but it has become home to an army of slugs that have eaten many of my plants over the years. I have tried many different things to combat the slugs (ground eggshells, coffee grinds, various different pellets), none of which have really made that much difference. I am also concerned about using products that may harm the birds that visit the garden and our dog. At this stage, I think I have to accept that the slugs are part of the garden and learn to live with them. So, I would like to look at planting some small shrubs and flowers that are not appealing to slugs. I would be grateful for some suggestions. JM
A: You have my sympathy, there’s nothing more frustrating than seeing much-loved plants being destroyed in this way, despite your very best efforts. I think it’s not so much the ivy, but unfortunately your old stone walls that are providing the sort of habitat – cool, shady, protected – that slugs and snails love.
This is especially the case in walls where the mortar joints between stones have gradually crumbled away over time, a process speeded up by the probing aerial roots of the ivy, which stubbornly work their way into small cracks and then gradually enlarge them. This creates plenty of convenient little damp nooks and crannies within the fabric of the wall, which over time become filled with leaves that slowly rot down into compost, the perfect place for slugs and snails to hide out.
You could, energy and budget permitting, strip away the ivy and repoint the wall, which would certainly help. But the best solution, as you’ve rightly concluded, is to grow the kinds of plants that are slug- and snail-proof, of which there are
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