Posted: 11/10/2016 at 17:38
Don't worry too much about plants like Euphorbia, David. It's a common query on the forum, but the reality is that many plants are technically 'dangerous'. A lot of people are becoming increasingly nervous about what they have in their gardens, which is a great pity. Ponds are another source of anguish, yet thousands of us have grown up with them - my own children included.
Mine also grew up with all sorts of plants which are considered unsafe, but they were taught about them, and weren't allowed to pick things or cut them etc unless they asked first. It's largely about common sense and education, and of course, young children shouldn't be unsupervised in any garden for any length of time. Fen's Ruby is tiny - a little ground cover plant. I'd be surprised if children were ever attracted to it! If you're still unsure, then don't worry, there are plenty of other things you can use.
You may find that if you're putting back a lot of trees that it'll limit what you plant, as the ground could be quite dry. Vinca (periwinkle) will do well once established, Hostas are the same, and you could also try sowing seed like some of the 'cow parsley copies' -Ammi Majus - for a froth of white.