Beginner Gardening: Flowers that need very less space, 1 by burraganesh

burraganesh wrote:
First initially I want to see seedlings separated by 10 inch gap in between and then I will surround them with two bricks on top of sheet followed by adding more potting mix.See the picture of my model.Red one is bricks say and green dots is plants.Thus it will be equivalent to 8 inch deep X 6 inch wide pot.

Please suggest me small plants that produce nice flowers.I think French Dwarf marigold can grow in this limited space.