Forbidden Rice was a limited edition Earth Day seed in FarmVille, available after reaching level 22. The seed was available for 9 days between April 21 and 29, 2010.
The seeds cost 300 coins to plant, and could be harvested every eight hours for 400 coins. They also awarded 1 XP per plot.
Freshly planted Forbidden Rice.
Forbidden Rice at 33% growth.
Forbidden Rice at 66% growth.
Forbidden Rice ready to be harvested.
Forbidden Rice treated with Crop Fertilizer.
Forbidden Rice after having withered.
*All images © Zynga