Observe your black peppercorns for a period of several days. Each cluster of peppercorns is called a spike. When the fruits nearest the bottom of each spike begin to turn red, the vine is ready to be harvested.
Don gardening gloves before picking black peppercorn. Black peppercorn vines are woody and rough, and handling with bare hands may result in splinters or cuts.
Cut the base of each spike you wish to harvest with gardening shears or scissors. Place your cut halfway between the stalk of the vine and the fruit at a 45-degree angle to the plant.
Collect your peppercorns in a basket or other container to ensure safe transportation.
Allow the spikes to dry in natural sunlight for four to five days before removing the fruit.