I wouldn't use mulch because it may be chemically prepped. There was a tree cutting service I use to get the wood chips from. I used a mix most likely it consisted of Ash, Birch, Oak, Pine, and Cottonwood wood chips. They were removing a cottonwood and they were 'glad' to give me the chips. In fact, they gave far more than I wanted and dumped a truck full right in from of my house..... Bastards. Oak chips I think would be great except you'd have to be careful of oak wilt, which is especially problematic with red oaks. The city Arborist told me that he never ran in to cases of oak wilt in the city parks and it was only problematic on people's properties. I asked him why that might be so and he theorized it was from people using herbicides on their lawns and told me the parks don't use herbicide.

I wouldn't use mulch because it may be chemically prepped. There was a tree cutting service I use to get the wood chips from. I used a mix of most likely it consisted of Ash, Birch, Oak, Pine, and Cottonwood wood chips. They were removing a cottonwood and they were 'glad' to give me the chips. In fact, they gave far more than I wanted and dumped a truck full right in from of my house..... Bastards. Oak chips I think would be great except you'd have to be careful of oak wilt, which is especially problematic with red oaks. The city Arborist told me that he never ran in to cases of oak wilt in the city parks and it was only problematic on people's properties. I asked him why that might be so and he theorized it was from people using herbicides on their lawns and told me the parks don't use herbicide.

Probably a mix of Ash, Birch, Oak, Pine, and Cottonwood wood chips. There was a tree cutting service I use to get the wood chips from. Oak chips I think would be great except you'd have to be careful of oak wilt, which is especially problematic with red oaks. The city Arborist told me that he never ran in to cases of oak wilt in the city parks and it was only problematic on people's properties. I asked him why that might be so and he theorized it was from people using herbicides on their lawns and told me the parks don't use herbicide.