PERSONALITY OF FLOWERS: Any bud buff will swear on the nearest nasturtium that every flower comes with its own sense of self. Call it character, if you will, or an aura, but putting a rose and a daisy in the same personality grouping is like eating peanut butter with steak. (Actually, that might kind of work.) We’re not saying pretty petal-laden things can’t co-exist beautifully, but, rather, understanding their general oomph, and outlook, is part of the joy of gardening…