Fertilizer in a dream signifies fertility, the potentiality of growth.
If a woman dreams of seeing a bag of fertilizer and feels that by buying it she will be able to experience an abundance of love and happiness. Or a person dreams of fertilizing their own garden with a bag of fertilizer and feels that this action will lead to success in their business.
Dreaming about fertilizer can be interpreted as positive or negative depending on the type of fertilizer used. For example, if there is manure then this would signify someone who is not worth your time or someone who will bring you down with their negative energy whereas using natural fertilizers would instead signify good fortune and growth for future endeavors such as in real estate.