Your Go-To Tree Fern Care Guide

Tree ferns, such as Dicksonia antarctica and Cyathea cooperi, are remarkable ancient plants that have endured through millions of years. These timeless species feature tall, tree-like trunks and gracefully spreading fronds that bring an exotic, lush atmosphere to gardens, patios, or indoor spaces. Originally found in the moist, shaded woodlands of Australia and similar tropical climates, they’re impressively resilient when given proper care. With a thoughtful mix of humidity, shade, and shelter, you can cultivate an ideal habitat that helps these botanicals flourish year after year.

What Is a Tree Fern?

Tree ferns are like small palm trees, with thick trunks that support wide, arching fronds. You’ll most often see them in shaded rainforest areas, but with the right setup, they can grow beautifully in your garden or indoors.

Two of the most common varieties are:

• Dicksonia antarctica (Tasmanian Tree Fern): A slower-growing, cold-tolerant variety.

  
  

• Cyathea cooperi (Australian Tree Fern): Grows faster and prefers warmer climates.

Where to Grow a Tree Fern

Tree ferns love a humid, sheltered environment with indirect light. Think of a rainforest floor: dappled light, moisture in the air, and no direct, harsh sun.

Indoors:

• Place your fern near a bright window but away from direct sunlight.

  
  

• Avoid dry spots near heaters or air vents.

  
  

Outdoors:

• Grow in part shade under taller trees or a pergola.

  
  

• Shield from strong wind and frost, especially during winter.

Watering a Tree Fern

Watering is the most important part of tree fern care.

• Keep the soil evenly moist, but not soggy.

  
  

• In warm months, water the trunk and crown (the top center where new fronds grow) using a fine spray.

  
  

• In colder seasons, reduce watering slightly but don’t let the soil dry out completely.

  
  

• For indoor ferns, mist the plant regularly or use a humidifier to maintain moisture in the air.

  
  

Tip: Never pour water directly into the center crown in winter — it can cause crown rot.

Soil and Potting

Tree ferns like rich, slightly acidic, well-draining soil but if you’re potting your fern, use these steps:

• Use a mix of potting soil, peat moss, and coarse sand.

  
  

• Make sure your pot has good drainage.

  
  

• You can also top-dress with compost or bark mulch to retain moisture.

To keep your tree fern healthy, feed it once a month during the active growing seasons of spring and summer. Use a diluted, balanced liquid fertilizer or opt for an organic alternative like seaweed extract or fish emulsion. Gently apply the fertilizer around the base or trunk of the fern, avoiding the crown to prevent damage to the growing point. This regular nourishment will help maintain its lush fronds.

Pruning and Maintenance

Tree ferns are relatively low maintenance, making them an appealing choice for gardeners who want a tropical touch without constant upkeep.

• Remove old or dead fronds by cutting them off at the base of the stalk.

  
  

• Don’t over-prune — the fronds help protect the trunk and the crown from sun and cold.

  
  

• Keep the area around the base free of weeds or debris to avoid pest buildup.

  
  

Bring the Rainforest Home

Tree ferns add character to your garden/home. With soft green fronds and a dramatic presence, they make a powerful visual statement. By mimicking their native rainforest environment your tree fern can live happily for years to come.

Have questions about a specific fern variety or need help choosing the right one for your space? Leave a comment or get in touch. At Canopy Keepers Tree Care LLC, our professional team is here to answer all your tree related questions and provide expert guidance whenever you need it.