Bellossom can learn TM22- Solarbeam.
In Generation III games, Belossom learns solarbeam at level 55.
He learns Solarbeam at level 61
Chikorita learns SolarBeam at level 50 in Gold, Silver, Crystal, Ruby, Sapphire, and Emerald. But Chikorita learns SolarBeam at level 45 in Diamond, Pearl, and Platinum.
It learns Solarbeam at level 65. It can also learn Solarbeam by TM, which you get at the Pokemon Mansion.
Venusaur learns Solarbeam at level 65 in the three first Generations, but learns it at level 53 in Gen 4 and 5.
Sunflora learns Solarbeam naturally at level 41, so no.
Meganium learns Solarbeam at level 66.
Venusaur learns Sloarbeam at level 53.
At level 45. It learns SolarBeam at that level.
Venusaur learns solarbeam at level 53
It learns Solarbeam at level 43. It can also learn Solarbeam by TM, which you get at the Pokemon Mansion.
In Generation III it learns Solarbeam at Lv65 and onwards.
to get synthesis you have to upgrade torterra to lv.39 at level 32 he learns earthqueake at level45 torterra learns crunch torterra learns solarbeam by a TM and cut by a hm and rockclimb by a hm and i don't know what level torterra learns earth power