Bacopa, also called water hyssop, has thick, succulent leaves that grow from trailing stems and small flowers that can bloom year-round in some areas. It grows as a ground cover and in hanging baskets. Knowledge of the growing environment for this plant will help you produce a healthy bacopa.
Bacopa is native to Florida, Hawaii and other parts of the United States that provide hot and moist conditions. The plant is only hardy down to USDA zone 9, which means you must grow it as an annual where the temperature drops below 30 degrees Fahrenheit. In zones 9 and above, the plant will grow as a perennial, blooming all year.
Site Selection & Planting
Bacopa prefers a site with full sun and moist soil. This plant likes boggy sands and clays and will survive immersed in water. It even will survive brackish water. Too much shade, however, will create a loose appearance for the plant. Plant multiple bacopa plants at least 6 inches apart for the best results.
Bacopa is not a drought-tolerant plant. It needs constant moisture, especially when establishing its roots. If you plant it in an aquarium, pond or other wet region, it does not need special attention. If you plant it in a drier area, however, keep it moist or even wet.
Bacopa can develop an iron deficiency easily. Symptoms of this appear through a whitening or yellowing of the leaves. For greener growth, apply iron chelate regularly in liquid or granular form. The plant will also do well with a yearly application of organic or slow-release fertilizer. Bacopa is not a heavy feeder, however, so only apply the fertilizer at half strength.