fan n - a device for creating a current of air by movement of a surface or surfaces
fermentation n - the anaerobic conversion of sugar to carbon dioxide and alcohol by yeast
fertile adj - capable of reproducing; Bearing functional reproductive structures such as seeds or pollen
fertilize v - provide with fertilizers or add nutrients to; make fertile or productive; impregnate
fertilizer n - Any of a large number of natural and synthetic materials, including manure and nitrogen, phosphorus, and potassium compounds, which are used to support plant growth.
flower n - The reproductive structure of some seed-bearing plants, characteristically having either specialized male or female organs or both male and female organs, such as stamens and a pistil, enclosed in an outer envelope of petals and sepals; That part of a plant destined to produce seed consisting of two essential parts, the stamens and the pistil, and two floral envelopes, the corolla and calyx; v - to blossom or ripen; to develop naturally fully or mature; forcing a plant to blossom or ripen using artificial means
flowering n - The act of blossoming, or the season when plants blossom;
flowering cycle n - the phase of a cannabis plants life cycle that begins when it first expresses its sex and continues until harvest
fluorescent lamp n - a light source consisting of a tube coated on the inside with a fluorescent material such as phosphor; electricity is arced between two electrodes and inert gases in the tube emit ultraviolet radiation that is converted to visible radiation by the fluorescent material
foliage n - the main organ of photosynthesis and transpiration in higher plants; A cluster of leaves
foliar feeding n - a method of providing nutrients to a plant by misting the leaves with a nutrient solution
fungicide n - a chemical agent, such as copper, lime sulfur, that destroys fungi
fungus n - a parasitic plant lacking chlorophyll and leaves and true stems and roots and reproducing by spores; plant disease characterized by mushy, rotting spots on the leaves that can be purple, black, or brown in color, causes necrosis of plant tissue, weakening of stems and affected tissue, and death, treated by lowering humidity and application of fungicide, such as copper, lime, or sulfur, to the affected area | 
