You have all the time to rearrange or polish your flower arrangement. The flower design should look beautiful and artistic enough before you place your filler, when the filler is already placed, it would be harder to move your things around the area or place. Bear in mind that The filler are very fragile.
One gets relaxed and rewarded when your hobby is flower arrangement. The artistic flower design beautifies any surrounding or any room, event or party to be specific at the same time.