is it hatched or your starter ? have you progressed through the story enough to access most the routes? meh I don't really use chikoritas too many weaknesses hmm I'd go Spec.A 252 Spec.D 252 and put the rest into hp and maybe the move set
Sunny Day
Solarbeam
Synthesis
for the last though kinda torn Egg move wring out,ancient power or the good ole never miss magical leaf but this is just a suggestion