The vigorously growing bamboo plant is the fastest-growing plant in the world, growing up to 40 inches per day. Ideal for indoor and outdoor home gardeners, the plant is easily maintained and has a fairly long lifespan. Though the care of the bamboo is relatively simple, it does require regular care in order to control its size and spread.
Develop a watering schedule for the bamboo that provides ample moisture without over-watering. Similar to the lawn, bamboo prefers to dry out between watering. Water the bamboo thoroughly and do not water again until the leaves begin to curl (a sign of drought). Start by watering the bamboo once a week. Increase the schedule during the hot, dry summer months.
Feed the bamboo plant twice each year, in the early spring and midsummer. Use a slow-release, high-nitrogen-based fertilizer, such as 40-40-40. Incorporate the fertilizer into the soil and water thoroughly.
Prune the bamboo plant to maintain the desired size. Trim down the culms using sharp, sterile shears. Trim back older culms to promote the healthy growth of newer, surrounding culms. Trim these culms back to soil level where they begin to meet with the rhizome.
Control the spread of bamboo by cutting back the rhizomes. Remove indoor bamboo plants from the potting container. Gently remove the excess soil from the rhizomes. Use a sharp, sterile knife to cut the rhizomes and separate the plants. Re-pot the indoor bamboo in fresh soil or water and place in a warm location that receives at least six to eight hours of indirect sunlight.
Control the spread of outdoor bamboo plants in the late spring or early fall. Identify the perimeter location for the bamboo. Sever the rhizome at the selected location using a sharp spade. Make a cut that runs through the depth of the underground rhizome. Dig out the unwanted portion of the rhizome and discard or replant. Complete the control process annually.