you have to get it after diving in one of those diving spots. then you might find a green shard take it and give it to a guy on a house to the left of mossdeep dont forget you have to surf there. then trade the green shard for a leaf stone.
pansage
scyther
pansage(monkey-grass pokemon) it evolves into simisage
gloom,so now you have a bellossom
with a leafstone
Evolves Grass-Type Pokemon (Nuzleaf-Shiftry, Gloom-Vileplume).
the only pokemon to be able to evolve is a level 54 danyon
some Pokemon you use a leafstone on are nuzleaf, execute,gloom, and victrebell
Take an oddish to Bill's grandfather on route 25
yes it evolves into a simisage when you use a leafstone on it
I will answer this in 1-3 days,thank you,sorry!
Wheepinbell needs a leafstone to evolve