Your answer might depend on the biome you live in. There are many biomes, or living communities on the earth's surface such as rain forests, grasslands, deserts, woodlands, savanna or temperate deciduous forests.
Trees grow all over the world.
They must adapt to different types of conditions from the icy cold to the desert dryness. For example, mangrove trees grow in tropical regions along the sea. In fact, they are sometimes called the forests of the sea. The roots of the mangrove tree are adapted to cope with the soft mud underwater by growing downwards like stilts toanchor it in place. Some roots grow upwards until they are sticking out of the water in order to reach oxygen.