is linseed oil safe
Flax seeds are pressed for their oil. Linseed oil is a classic wood finish, used for centuries to preserve and enhance wood furniture. Made from the seeds of flax (Linum usitatissimum), raw linseed oil is safe for use on planters, although it needs an extended drying time. While it may leach from the wood into the soil, raw linseed oil is not harmful to humans or animals.