Mealy sage (Salvia farinacea 'Victoria'), buzy Lizzie (Impatiens walleriana) and marigold (Tagetes) botanikfoto Picture Library Plant and garden photography Philodendron Tree Hugger: Rare Climbing Plant with Frame Bloombox Club Plant community gardening with nature at its heart Which gas do plants need for photosynthesis?, Photosynthesis is the process by which plants produce their own food using sunlight, water, and gases from the air. This process is essential not only Plant Parent (@PlantParentai) Posts X Plants growing on a sand dunes near an oasis in the White Desert national park, Egypt Stock Photo Alamy