please give me some useful ideas for proper grooming of the plants in my garden   

I hope this helps. When winter comes I cut down the plants so that the bulbs get the nutrients. In the spring I put mulch all around the plants to keep the weeds down. In the summer I use Miracle Grow. These things really seem to help my flowers grow and come back every year!

To prolong the flowering of your plants you should remove the flowers before they die. This will trick the plant into making more flowers so that it can produce seed. I hope you find this information useful.