Create a tropical illusion with this aquatic herb that is perfect for ponds and water gardens. The Lemon Bacopa has blue flowers and bright green, succulent leaves that change to red or bronze with increased light intensity. When bruised or crushed, its foliage gives off a citrus fragrance. This plant has a creeping habit and will sprawl in all directions across the water surface.It thrives in both fresh and brackish water, and prospers in shallow water.