Botanical Name: Chaenostoma cordatumSun Exposure: Partial Soil Type: Fertile, loamy, well-drained but moist Soil pH: Acidic (5.5-6.5) Bacopa can be grown as a perennial ground cover in Zone 9 and warmer, but elsewhere you'll find it trailing out of hanging baskets. The tubular flowers are often white with yellow throats. You can also find bacopa in pink, purple, and blue. Bacopa does best with regular watering and consistent moisture, especially in warm weather.