Plant Baptisia × 'Decadence® 'Lemon Meringue' (False Indigo 'Decadence® Lemon Meringue') for bright lemon-yellow flower spikes held on dramatic charcoal stems above a clean mound of blue-green foliage. You get a tidy, upright habit that stands out in spring and early summer, plus attractive seed pods later in the season. Mature size is typically about 30-36 inches tall and around 30-36 inches wide, making it a strong anchor for mixed borders without overwhelming nearby plants.
Give it full sun for the strongest stems and the most flowers. It tolerates average garden conditions and is especially useful in well-drained soils. Once established, it handles dry spells well, which makes it a dependable choice for low-fuss landscapes. Like many baptisias, it prefers to settle in and stay put, developing a deep root system over time.
Water regularly during the first growing season to help roots establish, then reduce supplemental watering as the plant matures. Avoid soggy soils and prolonged standing water. If you garden in heavier soil, plant slightly high or amend to improve drainage, and keep mulch light around the crown to prevent excess moisture buildup.
For maintenance, you can leave the seed pods for late-season interest, then cut stems back after frost or in very early spring before new growth begins. This long-lived perennial is best treated as a permanent planting; moving or dividing established clumps is usually not recommended. Use it where you want a sunny, durable perennial that also draws butterflies into the garden.