Tapping out at about 5 feet tall, dwarf Korean lilac (Syringa Meyeri 'Palibin') might be one of the bigger options on this list; however, several gardening pros said this option shouldn’t be overlooked. “The dwarf Korean lilac is known for its fragrant, lavender-pink flowers that bloom profusely in late spring,” says Tony O’Neill, author, expert horticulturist, and founder of Simplify Gardening. “It's a fantastic choice for adding fragrance and color to your garden." To make your lilacs stand out, O’Neill recommends pruning immediately after flowering to promote healthy growth and blooming.