One bacopa plant can be planted in an 8 to 10-inch diameter hanging pot, but it will take up to two months to fill out. Plant the bacopa in the center of the hanging pot. After one week, pinch out the growing tips. When two bacopa plants are planted in an 8 to 10-inch pot, they will fill in one to two weeks faster. They do not need to be pinched. The drawback to planting two in a pot this size is that it could very well end up lopsided.
Three bacopa plants will fill out an 8 to 10-inch diameter hanging pot in five weeks. They do not need to be pinched and can even be delayed by one week if they are pinched. Space them out evenly around the outer edge of the container for a full plant that will quickly spill over and cover the hanging pot. Four bacopa plants can be planted in an 8 to 10-inch hanging pot for an even fuller look. Three or four, the planting will be balanced.
Bacopa hanging plants can be hung in full sun or partial shade positions. Where at least six hours of direct sunlight is not possible, a location with direct sunlight in the morning and bright afternoon shade filtering through tall trees is preferred. Peat-based potting mix is best for these hanging plants. The mix should contain perlite or course sand for good drainage. If the potting mix does not contain vermiculite, a handful or two should be added for improved moisture retention.
Adequate water is extremely important for healthy bacopas. The potting mix must be kept consistently moist at all times. If the soil becomes dry, bacopas drop their flowers and buds. Check the potting mix several times each day and water the bacopas when the top of the mix begins to dry. A plastic hanging pot will keep the soil moist longer than other types. Fertilizer is also essential. Give them water-soluble 10-10-10 fertilizer diluted to half strength every other week. A dilution rate of 1 teaspoon in 1 gallon of water is commonly used, but this varies slightly with the fertilizer strength. Always water the bacopas before giving them fertilizer.