What Plants Need to Grow

Plants produce oxygen and provide our food, but what do they need to live? Learn why nitrates, phosphates, potassium and magnesium are vital for plant health. Biology - Plants - Learning Points. Understanding how plants grow ensures we have food on the table. Plants need sunlight and air, water and minerals. If minerals are lacking, roots shrivel and leaves discolor. Essential minerals include nitrates, phosphates, potassium and magnesium. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.