Hi, On 17/03/2015 15:09, Brian Whyer wrote: > Microchips IN the labels is surely the answer. One could set that up now, very cheaply, about 20 pence per RFID tag and a handful of dollars for the reader (see ebay). Inserting the tag in the bulb is attractive until you remember that many bulbs recreate themselves every year. Fritillaria bulbs have a hole through the middle and I'm doing an experiment where I inserted a stick through the hole last Autumn, and expect it to not be in the bulb next time. It is common to find bulbs escaping from pots through the holes in the bottom. So they will travel and leave your tags behind. -- David Pilling http://www.davidpilling.com/