I had the bug mentioned in Renee's post and as said, today it worked for me, so it was fixed.

There was a BUG with the energy plant when they removed it from the game nobody could harvest them... it was fixed today and u can now pick them for 3 energy.

I think our best bet is to try to sell them and get new plots....

lol, guess we are just gonna have 2 wait for them to die, not thrilled about losing the bonuses though!!

Thanku for replies.x

Hey guys, just chek this out.
The Energy Flower were deleted from plants list.
That's the why we can't harvest them when they are ready to pick.

I've got the answer from the forums. http://forum.playfish.com/showthread.php?t=2721248

mines does the same i thought it was just me... lol... someone help us plz

Wow, we've got the same problems, buddy.
I can't pick my energy flowers since January 2nd till now [January 5th].

I'd try to pick, and plants another one directly, but still "oops, we've found a snag, bla bla bla".
Maybe i'll looking for the answer to Sims Social Forum or Pages.
If I can find the answers, I'll tell you by message, But sorry, I can't help by now.
:)