Plant Decadence® Lemon Meringue False Indigo in full sun with well-drained soil. Space plants 3-4 feet apart. Water regularly during the first growing season to establish a deep root system. Once established, it is drought-tolerant. Fertilize in early spring with a balanced fertilizer. Prune back in late winter or early spring to encourage new growth. Divide clumps every 3-5 years to maintain vigor.