How I can technically increase the no. of flowers at home level . In household pots... any manures??? or chemical methods? ?? which can scent fully my house??? how I can give my house a free nary shape???
Outside United States
We are not clear on what you are asking.
Are you growing flowers in pots or in the ground, and are you hoping for fragrance in your yard or inside?
Either way, the fact that you (show up for us as) are outside the U.S. makes it difficult to be helpful, other than to say that good soil (yes, add aged, old manure) and attention to the cultural needs of your plants (sun, water ) will help you to grow great flowering plants.
As for what to grow, check your local area for what others are growing and what is sold in markets there.