If you exit west from Azalea Town you will reach the Ilex Forest.
You can also head south from Goldenrod City to get to the Ilex Forest.
in the Ilex Forest
Ilex Forest
Ilex forest is to the right of azelea town and south of goldenrod city
In the Ilex Forest at night.
go to ilex forest dumbo!
Ilex Forest in not in Firered. Ilex Forest is located in Johto. It can only be reached in Gen II or in the unreleased Heartgold and SOulsilver in Gen. IV.
A man in Ilex Forest gives it to you
Headbutt is no a HM in Pokemon soulsilver. However a man in Ilex Forest will teach it to any Pokemon that can learn it.
All you have to do is headbutt trees i found mine in ilex forest
ON Wednesday in ilex forest or viridan forest also put hoenn music on your pokegear
you get it in the Ilex forest
You can only find celebi through an event in the ilex forest.