When you're shopping for new plants to add to your dog-friendly landscape, look for plants with these qualities:  --Non-toxic if ingested  --No sharp thorns or thistles --Hardy enough that if your dog pees or jumps on them, they won't die Which dog-friendly landscape plants are best for your yard all depends on the climate where you live. If you're unsure what kind of plants you want, seek guidance from a local greenhouse professional.