Rob Herwig
Rob Herwig (9 September 1935 – 27 October 2022) was a Dutch writer. Herwig wrote books about gardening and houseplants. Between 1965 and 2016 he wrote over eighty books. His book Groot Bloemen- en Plantenboek (translated: The Great Flower and Plant Book) was published in 1966 and 250000 copies this book has been dold. His books have been translated into 22 languages. Over nine million copies of his books has been sold.