Seed bomb

Seed bombs are a bunch of seeds, mixed with other ingredients to form a pellet of some shape, that can be thrown by Guerrilla Gardeners into unused spaces to easily and inconspicuously do plantings. Favored seeds for the pellets include natives and vegetables.

Legalise marijuana groups have also been known to use them, throwing them onto parliamentary grounds and other such places, causing masses of cannabis plants to grow.