Do Slugs Eat Iris?

Iris plants are famed for their gorgeous blooms and vibrant colours. But what pests bother them and in particular are slugs a problem? Do slugs even eat Iris? let’s have a look and find out.

Do Slugs Eat Iris
Do Slugs Eat Iris

So, Will Slugs Eat Iris?

Yes, in fact, slugs are probably the biggest pest problem for UK iris growers. Young Iris can be completely destroyed overnight by hungry slugs.

Slugs will eat both the leaves and the flowers on Iris. If your leaves or blooms have irregular but smooth holes in them then slugs are the likely culprits.

The holes can be both in the centre of the leaf/flower or at the edges, slugs can cause both.

To confirm whether it is slugs or not causing the damage to your iris you need to look for slimy trails but the best way is to inspect the plant either at night time or following rain.

These are the prime times when slugs will be out and eating your Iris. Slugs don’t like to move about in dry conditions as it is uncomfortable for them so during dry days they will normally hide away in vegetation.

If slugs are your culprit then I have some good ways of dealing with them below to keep them away from your iris once and for all!

How to deal with slugs


Slugs Pellets

The classic way to kill off slugs and it does work, there are however drawbacks.

Firstly the little blue pellets aren’t safe to have around if you have pets or young children who might digest them accidentally.

Next, there is the fact that they may be harmful to slugs’ natural predators like hedgehogs who eat slugs killed by pellets, therefore, ingesting the poison themselves.

And then there is the mess they leave, lots of dead slugs on the surface of your garden with nasty trails everywhere.



This is a natural and organic way to kill slugs. There are all kinds of nematodes, which are tiny little creatures that live in your soil, some of these nematodes kill slugs.

This is completely natural and is what happens in your soil all the time. By adding nematodes you are just increasing the number of the slug killing type.

One of the advantages of this method aside from the fact you don’t have to use poison is that part of the way the nematodes kill the slugs makes them burrow into the ground before dying, so no nasty dead slugs lying around!

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06/26/2022 12:05 am GMT

Torch & Bucket

The manual method, and as is often the case with the manual method, this is very effective but time-consuming. Wait until dark and go out into the garden with a torch, some gloves and a bucket and start collecting slugs.

This is best done on a damp night after heavy rain as then the slugs will be everywhere, happy hunting!


Slug Traps

You can set up traps to capture slugs and then dispose of them how you wish. There are lots of different ways to do this but one of the more popular ones is a beer trap.

With a beer trap, you set a container, usually a plastic tub of some kind, level with the surface of the soil. You want it level with the surface so slugs can easily get into it but you want the bottom to be deep, so they can’t get out.

You then fill the bottom with some beer, which slugs adore, and leave it. The slugs will make their way into the trap and either drown or be waiting there come morning for you to get rid of them.

One downside to this apart from all the slug carcases you will be getting rid of is that the beer is so potent that it can apparently attract slugs up to 200 meters away and therefore bring even more slugs into your garden than were there before!



Hey, I'm Daniel. Having worked as a professional gardener for years as well as keeping a private allotment I decided to create this website to help spread my knowledge. I love gardening and hope to show you just how rewarding it can be!

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