Talk to a florist about more than colour
A useful floral brief explains the occasion and the space as well as the palette. A photograph can communicate a mood, but the florist still needs practical information to turn that reference into a suitable arrangement.

Describe the setting
Share the location, table or display dimensions and the time the flowers need to be in place. Explain whether the arrangement will be indoors, outdoors or moved between spaces. Note access, setup and collection needs. These details help the florist assess what is practical before discussing particular stems.
Separate priorities from preferences
Identify the elements that matter most: overall size, a particular feeling, reusable vessels or a meaningful colour. Ask about seasonal availability rather than assuming an exact reference can be reproduced. A flexible brief can preserve the intention while allowing the florist to work with the materials actually available.
Agree the whole scope
Confirm what the quote includes, who supplies containers and how delivery, installation and removal are handled. Discuss substitutions and any venue restrictions in writing. Share the final plan with anyone responsible for the venue, including the setup timetable and any collection needs. A single clear agreement helps the flowers arrive in a space that is ready to receive them.