Can household compounds (e.g. tea) be used to promote good health in plants 

Introduction:
You drink half of your tea and empty  your cup into the nearest flower pot. Is it good for the plant? I have seen people pouring coffee, soda and even ice cream in flower pots. How do these substances affect the plant? Can plants consume and benefit from our food and drink leftovers? How about soaps, detergents, oils and other household compounds?

Plants need certain nutrients in order to grow healthy, can we find some of those nutrients in household substances? 

 
 Project description:
In this project you will investigate the effect of household compounds on health and growth of certain plants. Instruction in the project guide includes planting seeds for your experiments.
 Details of this project
More details or support for this project is available for the members of ScienceProject.com web site. Material needed for experiment or a science kit about this title may be available at MiniScience.com.