Found out today that the Coco Shell mulch that we have been using in our flower beds is toxic to dogs. Our dogs love the smell/test of it. The vet told us that it is very dangerous for them to eat it. Although there was not a warning on the packaging.
Starbucks gives away their ground leftovers for use in the garden. They put them in good sized bags and they are usually in a basket near the exit. If not, you can ask them and they will usually give them to you. Garden smells yummy too