Allow your child to plant his own tree and he can watch it grow. Give him that opportunity to watch something grow, it could be a good experience for him as a preschooler. By doing this your child realises what a plant needs to make it grow and how it should be done. He will know where a certain plant should grow. Does it need to be planted in a shady spot or a sunny spot? At home or school, children should be asked to cover seeds with a dampened piece of cotton wool. It can be seeds of beans,  just as an experiment. These seeds should be kept for a few days in this way,  so that you can see what happens to the seeds. It can be very exciting for children doing it for the first time. Besides the seeds under damp cotton wool,  you as the parent can help your child to grow an avocado plant. You can use the pip of an avocado, place it in a glass of water with four matchsticks pricked into it, so that it just rests on the rim of the glass, preventing the pip from being totally submerged in the water, and let it stand for about a week or until you see shoots growing. Once that happens you can help your child to plant it in a well positioned spot.  When children watch their own plants grow they tend to take a lot of care of it. They water it daily and know that it should be in a certain spot. They also learn that it needs a specific amount of sunlight and that it gets the right soil. Preschoolers learn how to look after a plant and they know that it should not be destroyed as it beautifies our gardens, provides us with shade and plenty of fruit.