I would say it depends on the dogs, will they eat the plant or lay on the plant. If not you are safe. We had a new puppy who thought the euphorbias would make a great bed, he was then itching and crying a lot do to the sap burning his skin. Called the vet and gave the puppy a good bath to remove the sap and within three days he was back to normal. We had the euphorbia for 10 years and three other dogs that never bothered it.
The main problem with plants of the euphorbia family is that the sap is extremely irritant - the degree of irritation depends on the particular type of euphorbia the plant is.
It is almost like a chemical burn that dogs can get. If the dog has eaten it you would see signs ranging from a sore mouth, to excessive drooling, vomiting and having problems eating. Similarly it can cause burns on their feet and nose, basically wherever the sap could have touched the dog.

Been growing them for years and so have a couple of neighbours. Unless your dogs really eat garden plants then no problem. I've had four dogs since planting them and never had any sign of naughtiness. I only have one dog now but I grow Ricinus, Jimson etc. Have for years. A lot of scare is spread but they have to eat a lot to be ill.

its only realy puppies that are going to experiment realy and if it taste nasty which it probably does there not stupid . theres know end of poisoness plants in and out the garden but even my beautiful 5 month old sharpei brothers tend to go for the grass as i have know lawn . they even avoid plants that look like grass . i guess its that nose thats about 4,000,000 times more superier that does it .i watched a program about finding skin cancer . they put a few cells invissable to the human eye under a plaster with many other plasters and the shnoutser in this case found it . i watch a lot of crime investigation and this greedy farmer had murderd his neighber to nick his land . he got a big jcb type jobby , burried the farmer under other dead farm animals and tons of soil and these dobermans still found the human courpsess under the sheep,pigs ,cows etc which somes my point up realy . dogs see better with there nose than you can even comprehend doing with your eyes . like i say its the very young you have to worry about as you do children . as a basic rule of thumb any plant with gloopy white/creamy coloured sap is anything from real poisoness to making you sick as a pig . if any of my reguler readers want to see how the pups are doing just punch in nosey potter on utube . theres also a lot of other films there of sculpture, my house etc and also some funny or amazingly clever things being done on my faverites also some realy funny ones . my personal faverite is the datshuned that runs up to a just lit roman candle or fire bomb firework and picks it up firing at everyone who are ducking and running to cover lol . sorry to steal your question urbanhalo lol xx .

Don't know about dogs - trust Nosey on this., But just be careful when cutting off spend flower heads. If you wipe your eyes with sap on your fingers then woe is you. But in reality people have them for years with no problems.

i agree steragram . a fring of mine cut some very hot small red peppers in half and wanted to get the seeds out . he used to think it was a good idea using your thumb to do this lol . not anymore he said its like having a red hot pin pushed up his finger nail lol .

OOO nasty!

very lol