I’ve never actually studied flower arranging... I’ve kind of learned it as I’ve gone along, over the course of about 25 years... For me it’s what painting is for many other people...a way of relaxing, a way of listening to programs on the radio or to music without fidgeting, a way of showing affection to people I care about.., a way of centering myself...especially for me if it involves certain fragrances.... roses, stock, freesia, lily of the valley, peaches, nectarines, honeysuckle.
It’s like cooking. There’s no one way to do it right. You can start with what flowers are available at any given moment, as if they were ingredients, and improvise on those; or start with an idea, and see what ingredients would bring it into focus; or choose a container and think about various ways it could be shown to its best advantage. Or, most likely, use some combination of all these approaches.