In Pokemon Heart Gold Route 24 Is In Kanto Around Cerulean City
Ilex Forest, Route 24, 25, 5, and 6.
You find Oddish on: Route 5, Route 6, Route 24, Route 25, Ilex Forest Safari Zone
To find a Weepinbell. You should go to Route 24, Route 25, Route 44, and Safari Zone OR just simply evolve a Bellsprout which can be found at Route 5, Route 6, Route 24, Route 25, Route 31, Route 32, and Route 44.
No. to get a whismur in Pokemon heartgold you can go to either of the following places whilst playing Hoenn Sound: Outside Mt. Silver Route 10 Route 13 Route 21 Route 22 Route 24 Route 25 Route 26 Route 27 Route 28
fly to cerulean city go north across nugget bridge on route 24 and then go left and surf down and then you're there!
In HeartGold, buizel appears in Route 6, Route 9, Route 10, Route 13, Route 21, Route 22, Route 24, Route 25, Route 26, Route 27, Route 28, Route 30, Route 31, Route 32, Route 35, Route 42, Route 43, Route 44, Route 45, Route 47, Ruins of Alph, and Mt. Silver
you can catch houndour on route 7 at night only and evolve it to level 24 and that's how you can get houndoom well that or you can trade
There is, in fact, no route past route 24
Go up from Cerulean City to route 24 then take a right at the top of route 24 but ve ready for a lot of battles.
Lots of places: Route 5, Route 6, Route 24, Route 25, Ilex Forest, and the Safari Zone.
You can catch a Whismur in a lot of places:Route 6, Route 9,Route 10, Route 13Route 21, Route 22, Route 24, Route 25, Route 26, Route 27, Route 28,Route 30, Route 32, Route 35,Route 42, Route 43, Route 44, Route 45, Route 47,Ruins of Alph, Mt. Silver
He's in Ice Path, at levels 21-24