Black Berries are a seed in FarmVille, available after reaching level 29. The seeds cost 75 coins to plant, and can be harvested every four hours for 117 coins. They also award 1 XP per plot.
Freshly planted Black Berries.
Black Berries at 33% growth.
Black Berries at 66% growth.
Black Berries ready to be harvested.
Black Berries treated with Crop Fertilizer.
Black Berries after having withered.
*All images © Zynga
Farm Trivia: Traditionally, it is said that Blackberries should not be harvested after Michaelmas, or the 29th of September.