seeding and planting tools [1]
garden line 
Cord stretched between two stakes and used as a guide for marking straight furrows and edges for a border or a hedge, or for demarcating sections of a vegetable garden.
bulb dibble 
Tool with a cylindrical container for removing a core of soil to create a hole in which plant bulbs or young plants are planted.
dibble 
Pointed tool for digging a small hole in the ground in which to plant seeds or bulbs.
seeder 
Small shovel fitted with a distribution device for sowing seeds without touching them.