Collect ripe spores from fronds of ferns. Ripe spores will be yellow, brown or black. These are found in shady, damp areas of the woodlands or forest. Remove a tip from an unfurled frond from a large plant. Do not use ferns growing on public park land; collect spores from ferns on private property you own or where you have permission to collect from.
Place the frond piece between two pieces of white paper. In 24 hours the tiny spores will have loosened and dropped on the bottom sheet of paper.
Place spores onto dampened, sterilized soil in small pots. Limit the spores in each pot, most will have a germination rate of 90-percent success.
Place pots into a plastic bag to hold in humidity. Keep soil moist by misting when needed.
Place bagged pots under a double fluorescent grow light or in an area that gets indirect light. Seeds often germinate within a week. Tiny fronds develop within a few months. Allow fronds to reach 3 to 4 inches in height.