Divide and Propagate Bird's Nest Ferns: Step-by-Step Guide

Revive Overgrown Ferns by Division

Bird's Nest Ferns (Asplenium nidus) propagate two ways: division (fast) or spores (slow). Division rejuvenates crowded plants and yields multiple specimens free.

Tools & Materials

• Mulch, organic fertilizer
• Shovel/trowel
• Drainage material (leaves, bark)
• Mixing tray
• Clean pots
• Secateurs, sharp knife

Division Steps

1. Remove plant: Tip pot sideways, tap to loosen, slide out onto clean tray.
2. Assess & divide: Solid crowns split into 3-4 sections; sparse roots → halve. Clean knife cuts; each section needs healthy roots.
3. Trim fronds: Cut back to 15cm above crown—redirects energy to root establishment.
4. Sterilize pots: Soak 1+ hours in 50/50 vinegar/water. Rinse thoroughly. Prevents pathogens.
5. Prep soil: Blend existing soil with fresh potting mix + organic fertilizer.
6. Pot up: Drainage layer in bottom. Plant crowns at soil surface (not buried). Water well; keep shaded.

Spore Propagation (For Patience)

1. Collect spores: Cut fertile frond, shake onto white paper/cloth
2. Sow on sterile seed mix; cover with plastic wrap
3. Mist 2x weekly until "moss" stage appears
4. Transplant clumps to new sterile mix
5. Pot up individual plantlets as they grow

Other Fern Propagation Methods

• Crowns: Separate basal crowns on large ferns
• Rhizomes/Runner: Detach hanging rhizomes from baskets—fastest method

Holiday Garden Prep Bonus

Suppress weeds while away: Lay newspaper/cardboard between plants, top with mulch. Blocks light, retains moisture.

Now you have multiple free ways to expand your fern collection!