Grow chia plants (Salvia hispanica) in warm, sunny conditions
Plant seeds in well-drained soil after the last frost
Water lightly until seedlings establish
Allow plants to mature and flower
Wait for flower heads to dry and seed pods to turn brown
Cut the seed heads from the plants
Place the seed heads in a dry container or bag
Rub or shake the seed heads to release the seeds
Remove leaves, stems, and other debris
Sift or winnow the seeds to clean them
Dry the seeds completely before storage
Store the seeds in an airtight container in a cool, dry place