The Independent is usually fairly reliable, although I do wonder to what extent that regulation applies to personal use at home - an awful lot of EU regulations ban things in industry but not at a personal level. And people tend yto just accept it when people tell them that an EU regulation bans something apparently innocuous, because the press has spent so many years convincing us that the EU is little more than a jobsworth out to spoil our fun.
That said, I really can't be bothered to go hunting through for the exact wording to check I'll just keep making my "own recipe" of "mulch" to "improve the soil". Indeed