Throwable Seed Packets

Throwable items that grow various plants when they hit something. They would grow vines on the sides of blocks, place leaves, bonemeal grass, plant things in farmland and occasionally plant saplings.

They would stack up to 16 and be crafted w/ the following: 

Corners would be leather

Center would be bonemeal

Remaining slots would be filled with any seeds 

They could also be used in combat. If one hits a mob or player the effects will still happen around them.