Exeggcute, Weepinbell, Gloom.
I'm pretty sure Happiny evolves from it
Exeggcute evolves when you use a leaf stone on it.
Togetic evolves with a shiny stone. So does roselia but you cannot get it till much later on in the game
Togetic.
well on heart gold he evolves at twenty into quagsire.
Growlithe > fire stone > Arcanine
Geodude evolves after level 35 in heart gold
Seedot evolves at into nuzleaf at level 14 and into shiftry when exposed to a leaf stone.
The Leaf Stone evolves Gloom into Vileplume.Yes this works on both Heart Gold and Soul Silver.Using a Sun Stone on Gloom evolves it into Bellosom.Hope I helped!P.S.If you know how to get Lugia without Silver Wing in Heart Gold or how to get the Silver Wing in Heart Gold please tell me Oh and please tell how to get through Whirl Islands.If you can thanks!Can you show me a map?
Weepinbell evolves at any point since it evolves as soon as you use a Leaf Stone on it.
All i know that weepinbell can evolve with the leaf stone and it turns into a victreebell
Meditite evolves into medicham in Pokemon heart gold/soul silver at level 45