hi my husband made a super bespoke trellis for some jasmine to lovingly entwine. A work of art and then he put creosote all over it. Even though the very old tin states it is poison and you can kill tree stumps with it! So,ever knowledgable gardeners, can I use this trellis or is there a way that anyone knows of that makes it usable as I really appreciate the hard work he put into building this for our lovely garden? Or is it a bin it and start all over again?