When I learned Ikebana as an adult, I was really fortunate to have had an old_fashioned sensei (instructor) who not only taught me the theory and techniques, but also immersed me in the respectable manners and ways of the good old days. It is through my sensei that I learned that Ikebana goes beyond the typical art form, and that it is more of a way of life; in fact, Ikebana is also known as kado, which literally means "the way of the flower."
Purchase synthetic flowers instead of the natural ones. Synthetic flowers may cost a bit more when you buy them in bulk, but they could save your money as they last longer than the natural ones. Here is how it will be worthy to buy the synthetic ones; when you buy the natural flowers for flower girls, bridesmaids, as well as for yourself, they tend to whither rather quickly, more so in case of indoor weddings. As a result, you may end up buying more fresh flowers. One more advantage of buying synthetic flowers is, you can chose any petal color, any bloom shape as per your preferences and thus giving you more freedom in planning the decoration at your wedding.