How Far Apart to Plant Tree Ferns

Tree ferns are a popular ornamental species of ferns that can add a tropical and exotic touch to any garden or landscape. When planting tree ferns, one of the important things to consider is the spacing between individual plants. Planting tree ferns too close to each other can lead to overcrowding, competition for resources, and stunted growth. On the other hand, planting them too far apart can result in a sparse and unappealing appearance. So, how far apart should tree ferns be planted?

Factors that Affect Spacing

The spacing between tree ferns can depend on various factors such as the species of fern, the size of the plant at maturity, the growing conditions, and the purpose for which they are being planted. In general, larger tree ferns require more space than smaller ones, and those that grow in shady conditions can be planted closer together than those that require full sunlight. Additionally, if the goal is to create a dense and lush oasis, closer planting is appropriate, while a more open or minimalist aesthetic may require greater spacing.

Recommended Spacing

The recommended spacing between tree ferns is usually between 3 and 6 feet (0.9-1.8 m), depending on the species and growth habit. For example, the Australian tree fern (Cyathea cooperi) can grow up to 30 feet (9.1 m) tall and wide, and requires at least 6 feet (1.8 m) of spacing between individuals. On the other hand, the popular soft tree fern (Dicksonia antarctica) grows at a moderate rate and reaches a mature size of 8-10 feet (2.4-3.0 m) tall and 6-8 feet (1.8-2.4 m) wide, and can be planted about 3-5 feet (0.9-1.5 m) apart.

Spacing for Container Planting

Tree ferns can also be grown in containers, which makes them ideal for small patios, balconies, or indoor spaces. When planting tree ferns in containers, it is important to choose a large pot that can accommodate the fern at its full size, and leave ample space between individual plants. A good rule of thumb is to leave at least 6 inches (15 cm) of space around the plant's base and root ball, and provide adequate drainage to prevent water from pooling.

Conclusion

Planting tree ferns at the proper spacing is essential for their growth and well-being, as well as their visual impact in the garden or landscape. While the ideal spacing may vary based on several factors, a good starting point is between 3 and 6 feet apart. When planting in containers, be sure to choose an appropriately sized pot and leave ample space around the plant. By following these guidelines, you can create a lush and healthy environment for your tree ferns to thrive.