Article by Lee Reich
After eating an avocado, it is hard to resist planting its seed. However, to get the seed sprouting quickly you need to be quick as the seed will need immediate planting. Luckily there is a tried and tested method when it comes to growing avocados from seed. This is done by poking three toothpicks into the side of the seed so that it can perch, halfway immersed in water, on the rim of a drinking glass. The seed could also be avocado planted in potting soil, but this misses some of the fun of watching the roots and the shoots grow.
Indoors, avocado plants are often gangly and sparse with leaves. One reason for the plant's gawky appearance indoors is lack of light. Lack of sufficient light causes stems to stretch for it, a phenomenon know as etiolation. Another reason is that avocados shed many buds along their stems, buds that might have grown into side branches. The result is a plant stretching out for light, sending out new growth mostly from the tips of the branches and shedding old leaves.
There are several things indoor gardeners can do to keep their plants more attractive. Most obvious is to give your avocado tree brighter, stronger light. Also, the stretch for light is exaggerated when warmth stimulates growth, so the ideal spot for the plant is at the brightest window in the coolest room. Beyond that, pruning back a stem or pinching out its growing tip stimulates branching by awaking dormant buds (not all are shed) further down the stem. There is nothing that can be done about the shedding of older leaves.
Lack of fruit on an indoor tree is no great loss, because seedling trees rarely produce fruits as tasty as those on commercial trees, which are grafted to good-tasting cultivars. Indoors, avocados are best looked upon as a houseplant that is inexpensive, fun to grow and somewhat attractive.