International World Flower Show Rules
2. Plant material must predominate over all other components of the exhibit.
3. The use of artificial plant material is forbidden unless otherwise stated in the schedule.
4. Painted and/or artificially coloured plant material may be used unless otherwise stated in the schedule.
5. Fresh plant material must be in water or in water-retaining material unless such material remains turgid till judging and must be maintained throughout the event.
6. Pre-prepared work must not predominate in an exhibit. Items requiring special time and expertise for their preparation may be brought ready assembled for incorporation in an exhibit but must not predominate.