Plants require certain elements to survive including water, air, sun, soil and nutrients that the roots absorb from the soil. The stem transports these nutrients and water throughout the plant. Leaves catch sunlight which is used for photosynthesis while flowers produce seeds and fruits protect seeds and help with dispersal. To care for plants, water them once or twice a day to keep hydrated, grow in open spaces, avoid damaging leaves and flowers, and remove competing weeds.