In times past, the British colonial digestive system was one of some uncertainty. Advocates were sought to assist it but alas, one of the most popular of these, horseradish, failed to flourish on warmer climes. Back in Britain it was a virtual weed. Indeed, garden guru Percy Thrower suggested growing it in specifically constructed concrete troughs to restrain its awesome growth. A suitable substitute had to be found. It did not take long to discover such.