I bought this book after seeing the first BBC programme primarily becuse I have a large garden and am in the midst of revamping it entirely. So, thank you, Mr. Wong, I now have orderded (and received) for example, a Goji berry shrub. We have elder trees by the hundred around us so I look forward to the home-made lozenges in due course! Frankly, this is a book (and a series) which opens the mind to the beneficial effects of local natural plants. It's not a cure-all and should not be treated as such. I don't suffer from insomnia so I guess I won't try the hops pillow but there's plenty to go at elsewhere and I thoroughly recommend the book - with a caveat: do your own research before trying out these ideas. There's plenty of follow-up information on the net so don't shoot the messenger but do buy the book. He seems such an enthusiastic and pleasant person, anyway!