Avocados (Persea spp.) grow in U.S. Department of Agriculture plant hardiness zones 10 through 11. Before deciding if you need a second avocado tree to have fruit, you must understand the unique flowering characteristics of this plant. read more
The flowers of avocado trees are perfect, because they have both male and female parts, but both of these parts are not accessible at all times for pollination. The flowers only open for two days. On the first day, the female part opens for two to four hours and during this time, it can receive pollen. read more
Though avocado trees have stigmas and stamens, each is available for pollination at different times of the day. This makes it difficult for one tree to self-pollinate. Higher fruit yield is obtained with two trees. read more