So the planter is still in the room where you have to shimmy to from outside the building? Place the bulb into the gold planter thing and it will lower itself into the water below. Once it's in the water, it will grow a little, but not enough for the old coot. It needs light to grow more. Once the gold planter is in the water, climb up to the big beam that you used to move between the two platforms that are just to the left and the right of the big double doors. Stand in the middle of the beam (there are two color tiles that pretty much scream STAND HERE) Use your whip and swing over to the large switch/platform. Once Indy lands on it, it will lower and the window will open just above his head, casting light down upon the plant. It will now grow to the disired size. Pick it up (Indy of course shoves this large plant into his pocket) and take it to the old she-male.
[This message has been edited by Damian (edited November 23, 1999).]