Interaction among plants

Plants Depend on Other Plants for Support and Food

Plants don't just grow by themselves. Some plants need other plants for support or to get the nutrients they need to grow. Let's explore how this works.

Plants That Creep and Twine Around Other Plants

1. Some plants can't stand up by themselves or don't have enough sunlight. These plants creep or twine around other plants for support.
2. These plants wrap themselves around stronger plants. This helps them stay upright and reach for the sunlight.

Example: Climbing plants like vines (e.g., morning glories or grapes) twine around trees or other plants. By climbing up, they can reach more sunlight to grow and make their own food. These plants are not harming the plants they climb on; they are just using them to help them grow.

Plants That Grow on Other Large Plants (Epiphytes)

1. Some plants don't grow in the ground at all. Instead, they grow on large plants like trees.
2. These plants are called epiphytes. They get support from the tree, but they don't take food from it. They just need the tree to help them reach sunlight.

Example: Mosses and orchids are examples of epiphytes. They grow on the branches of trees to get more sunlight.

How Plants Get Nutrients from Decomposed Plants (Humus)

1. Plants also need certain nutrients (like nitrogen, phosphorus, and potassium) to grow.
2. These nutrients come from humus, which is made from decomposed plants and animals. When plants or animals die, they break down and turn into humus.

Example: Humus is like a special fertilizer that helps plants grow strong and healthy. It contains the nutrients plants need to grow, like nitrates (which help plants grow bigger) and phosphorus (which helps plants grow strong roots).