If you plant avocado seeds in the soil outdoors, with proper care, the seeds will grow into an avocado tree that will bear fruit. If you grow avocado seeds indoors, the plant will never bear fruit, but it can become a beautiful indoor plant with lush, green foliage. Once the seed takes root and the stems and leaves begin to grow, watch it carefully and prune it back several times. This pinching will produce a full avocado plant that will grow for several years.
Watch the avocado sprout as it roots and sprouts its beginning sprouts. Usually people sprout an avocado seed in a glass. When the central stem is six inches high, trim it back to three inches.
Check the root growth as the plant rebounds after trimming. When the roots are strong and foliage regrows, plant the avocado in the container with the seed partially exposed.
Place the container in a sunny window and keep the soil moist.
Trim back the avocado plant again when the foliage reaches one foot tall. Cut back the avocado to six inches. This will encourage the avocado plant to become full and bushy rather than tall and spindly.
Keep the avocado plant evenly watered and give it plenty of sunshine. The plant should live for up to five years.