It evolves into a Weepinbell at level 21.
Bellsprout evolves into a Weepinbell at level 21 in Pokemon Crystal.
Bellsprout evolves into Weepinbel at level 21.
Level 21
Bellsprout evolves at level 21 if I'm not mistaken, might be 22 or 23, but I'm pretty sure its 21.
21
Bellsprout evolves at level 21.
It evolves at level 21.
Bellsprout evolves into Weepinbell at level 21.
You go and level it to Level 21, where it evolves to Weepinbell.
Bellsprout evolves in all Pokemon games on 21 or 22 level I'm not sure. If you want Victribel you need Leaf stone.
Bellsprout evolves at level 21
bellsprout will evolve at lv.21 and again with a leaf stone it will evolve into victreebell