I have many problems with snails and slugs in my garden. When I want to plant something I usually grow it far away enough from the garden until the plant is big enough to support some "attacks".

I was quite surprised today when I found 2 slugs and one snail in a plant, around 4 meters away from the garden (grass and other plants) and that is actually hanging in a wall support. I don't think they came with the plant so they had to spot it from the garden, walk 4 meters in pavement, risking their lifes, climb the wall, and then down the support.

This makes me think that I should reassess where I make my seed plot place and makes me wonder how far can they see or how do they find plants like this?

  • Here's an interesting article, although it doesn't expressly answer your question: animals.mom.me/snails-eyes-10446.html
    – Brenn
    Commented Jun 8, 2016 at 16:51
  • 2
    Note that they also have olfactory (i.e. smelling) organs (rhinophores).
    – dakab
    Commented Jun 8, 2016 at 17:08
  • @dakab Your comment looks to me like the makings of a valid answer, as the last part of the question asks how, other than seeing, do they find plants. If you want to write it, I think it would be helpful and on-topic. Commented Jun 8, 2016 at 21:55
  • @Sue: Thank you for encouraging me. I’d really love to give an appropriate answer. Unfortunately—as a non-native speaker—I don’t feel like I’m up to it. Not if it’s ought to satisfy a minimal (layman’s) scientific standard. However, there’s an extensive article on the sensory organs of gastropods.
    – dakab
    Commented Jun 9, 2016 at 9:55
  • 1
    @Nic I understand your point and you're probably right. Regarding beer, I tried making traps and got one or two slugs a day - Which is very low given the amount I have in plants. I gave up on that when I realized that the slugs were actually drinking more than me :)
    – nsn
    Commented Jun 10, 2016 at 22:45

1 Answer 1


A page about snail vision.

  • They have better eyesight than other animals in their group.
  • They can avoid larger obstacles.
  • They can't focus they eye.

Vision is not the most important requirement in terrestrial gastropods, because they are mainly nocturnal animals. From Wikipedia.

  • Nocturnal and already there hiding till they come out at night. Put a wide board down with a little gap underneath, turn it over after a couple days. It will tell you what kind of slug/snail population you already have before planting. Commented Jul 10, 2016 at 17:03

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.