Lemon Balm is a seed in FarmVille, available after reaching level 50. The seed costs 230 coins to plant, and can be harvested every six hours for 290 coins. It also awards 1 XP per plot.
Freshly planted Lemon Balm.
Lemon Balm at 33% growth.
Lemon Balm at 66% growth.
Lemon Balm ready to be harvested.
Lemon Balm treated with Crop Fertilizer.
Lemon Balm after having withered.
FarmTrivia: Lemon Balm is actually classified as part of the "Mint" family.