About Trey Tarrant Expertise I can answer questions about plant identification, plant care, plant pest management, landscaping, and general gardening questions. Please post a picture of the plant you wish to identify, if possible. If you say something like, "I've got this plant and it's green with long leaves and white flowers" and do not include a picture, chances are I won't be able to help you. I may not be able to help with plants that are not grown in the Southeast/ Eastern US, but you're welcome to try me.
Experience Landscaping for 10 years. Horticulture Instructor at Lawson State Community College for 7 years.
Education/Credentials M.S. in Horticulture from Auburn University.
Question What are the kind they sell everywhere in bunches growing in just water and
pebbles? Will they grow in soil? Do they need anything other than water?
Answer That plant isn't a real bamboo, but a species of Dracaena, a genus that contains a number of popular houseplants, such as the so-called corn plant and Janet Craig.
The plant actually prefers to grow in soil, though transitioning from water to soil may shock the plant.
Other than water, the plant needs the right amount of light (bright, filtered), and nutrients in the form of an organic or chemical fertilizer, although, having been heavily fertilized by the grower, the plant may survive for years without additional nutrients.