Cottonee evolves by sun stone. If you have a sun stone you can evolve it at any time.
Use Sun Stone
Cottonee -> (Sunstone) Whimsicott
A Sun Stone will evolve Oddish, Sunkern, Cottonee, Petilil and Helioptile.
gloom can evolve into bellosom and sunkern can evolve into sunfloria.
Cottonee evolves by sun stone. If you have a sun stone you can evolve it at any time.
Cottonee does not evolve into Whimsicott at a particular level. You must use a Sun Stone on Cottonee to make it evolve.
Use Sun Stone
Cottonee -> (Sunstone) Whimsicott
A Sun Stone will evolve Oddish, Sunkern, Cottonee, Petilil and Helioptile.
gloom can evolve into bellosom and sunkern can evolve into sunfloria.
Sun stone.Of course its the same with COTTONEE,someone will be willing to give you a cottonee/petilil in that town...With leonora
Petilil, which evolves into Lilligant Cottonee, which evolves into Whimsicott
um, you need to evolve cottonee, all you need is a sun stone
Five different Pokemon evolve using a Sun Stone. Gloom will evolve into Bellossom. Sunkern will evolve into Sunflora. Cottonee will evolve into Whimsicott. Petilil will evolve into Lilligant. Helioptile will evolve into Heliolisk.
Sunkern, Gloom, Cottonee, Petilil, and Helioptile evolve using the Sun Stone. Sunkern evolves into Sunflora, Gloom evolves into Bellossom, Cottonee evolves into Whimsicott, Petilil evolves into Liligant, and Helioptile evolves into Heliolisk.
The only way Petilil will evolve is when you give it a Sun Stone. This is also true on how Whimsicott evolves from Cottonee. So basically: Cottonee + Sun Stone = Whimsicott, Petilil + Sun Stone = Lilligant.