That's cheaper, but it could even be fun doing it for next to nothing: My site hedge is mangey and I've been surveying the tenants asking who'd be interesting in growing on some hawthorn seedlings to repair the hedge, and 90% say yes. So being as how we're gardeners, all we need to do is collect some haws and bingo. From an ecological point of view it's also a good strategy because if the haws are picked from suitable trees the seedlings are genetically diverse locally native.