Propagating Boston Ferns: Runners & Division Methods

Two Easy Propagation Methods

Boston ferns propagate readily via runners (stolons) or division. Both yield healthy new plants.

Method 1: Runner (Stolon) Propagation

1. Identify a runner with roots where it contacts soil.
2. Gently tug or cut with a sharp knife. If cut, let the end callus 1–2 days.
3. Plant in sterile potting mix in a pot with drainage. Bury just deep enough to stand upright.
4. Water lightly, cover with a clear plastic bag, and place in bright indirect light at 60–70°F (16–21°C).
5. When new growth appears, remove the bag and keep evenly moist.

Method 2: Division

1. Let the root ball dry slightly, then remove from pot.
2. Using a serrated knife, cut the root ball into halves, then quarters, then eighths.
3. Trim each section to 1–2 inches of roots, fitting a 4–5 inch pot.
4. Cover drainage hole with a pot shard, add well-draining mix, center the division, and fill around roots.
5. Remove sickly fronds to reveal new fiddleheads. Keep moist (use pebble tray) but not wet.

Historical Note

Early Florida nurseries grew stock plants in cypress shade houses, harvesting runners for northern markets. Today, climate-controlled nurseries use similar methods, sometimes with tissue culture.

Both methods are reliable—choose based on plant size and your preference.