You don't need an item for it. You need to have sunny weather in the game for it. There are two ways to get sunny weather. They are:
A. Get a Pokemon that learns the Sunny Day move
B. Send Groudon out into battle, which has the ability drought so it makes sunlight happen
no
i think its solar beam. if not...i do not know.
TM15 is Hyper Beam and you can get it at the Veilstone department store 3F
no it can not learn it but you can get ice beam as a TM is number 13
try the shops either in the dungeon or while in town, hope this helps
The TM for Solar Beam (TM22) can be brought from the Veilstone Department store.
On Pokemon Diamond, Pearl and Platinum you can buy solar beam at the vielstone department store, third floor. I think it costs 7500
Hyper Beam.
no
No you can only get it once in Pokemon mansion.
in pinwheel forest
Solar Beam. If Sunny Day is used, Solar Beam can be used without needing a turn to charge.
Yes via TM.
TM13 is Ice Beam, you can find it on Route 216.
You find it in the bottom of the Pokemon mansion
Solar beam is Tm 22 and can be found in the Pokemon Mansion.
Bellossom cannot learn Petal Dance or Solar Beam via level up in DPPTHGSS. However, Bellossom can learn Solar Beam through TM. Gloom learns Petal Dance at level 53, so if you let it learn Solar Beam, then evolve it. In RSEFRLG, Bellossom will learn both Petal Dance and Solar Beam. Petal Dance at level 44 and Solar Beam at level 55.