Those look to be railroad ties. if they are they have been treated with creosote. I would suggest not eating any food grown near them as it can cause cancer, kidney, liver and a whole host of other health problems
Are we sure no dogs passing by won’t pee on them?
Although this seems to be a nice idea to help others I suggest you refrain from continuing the practice. Wily nilly going around planting things can ruin the local ecosystem and fauna in that area. Especially if you are not there to tend and care for it. Not all flowers are meant to grow in every environment and even if you did this after careful research that none would be a non native invasive plant that can kill off the other plants, or that it can be poisonous to animals.
My future meals thank you!
I love this community-based way of behaving.
Continue the love please.
Safe travels and many adventures to you.


