Make Bouquets Flowering trees are one of the best investments a gardener can make. They require very little care, provide a flush of blooms each spring and are perfect for easy arrangements. Simply cut an armful of medium-size branches and place them in a vase with a little warm water, and your office desk or living room will get an instaboost of color and scent. The pictured sandcherry blooms early in May, then puts out purple foliage that draws attention all year. Place this tree near your front door and you'll be greeted by the best smell of your life every evening for a month.