Documents to Download
One Purple Summer   large product photo

Reports from enthusiasts around the UK during the year 2008. Details of sightings and locations, complete with photographs

Purple Again   large product photo

The 2009 season, including additional reports from continental Europe.

Season Without End   large product photo

Beautifully illustrated monograph detailing a study of pre-hibernation iris larvae in the wild.

The Master Tree Project   large product photo

Most existing literature maintains that iris is usually associated with a particular "master tree". This study explodes some of the myths concerning master trees, and forces a radical reappraisal of just where and when to look for the Purple Emperor.