The Cyathea Tree Fern, a garden favourite, features graceful fronds that bring natural charm to your garden. With its easy maintenance and captivating presence, it's a fantastic choice for your landscape
Planting Calendar
Tree ferns are best planted in the cooler months of the year so they can establish their roots before the heat of summer.
Prepare
Cyathea is a species of tree ferns which grow naturally in forest and woodland areas of NZ. The main 2 species that are well know in NZ are Dealbata (the silver tree fern) and Medullaris (the black tree fern). Tree ferns are a great addition to the garden planted in groups or alone under planted with other shade loving plants. They can also be grown in large pots.
Position
Cyathea do best when planted in partial to full shade with protection form the harsh midday sun which can burn the fronds.
Soil
When planted into the ground Cyathea prefer a free-draining soil that is rich in organic matter. To improve the organic content in your soil, break up the soil and add Kings Compost and Kings Sheep Pellets then mix together well. When growing in containers, plant into Kings Container mix. This mix contains Saturaid, which helps with moisture retention in the soil
Plant
When planting into the ground, ensure the plants is well watered then, gently tap the plant out of its pot. Dig a hole twice the depth and width of the plant’s root ball. Mix Kings Compost into your existing soil at a 50/50 ratio, add Kings Sheep Pellets then mix together. Backfill the hole with this soil, so that when planted the top of the plant’s roots sit level with the surrounding ground. Firm the soil down gently and water in well with Aquaticus Organic Garden Booster. In heavier clay soils, where drainage is likely to be an issue, plant onto a raised mound and sprinkle Gypsum Clay Breaker into the bottom of the hole, this helps slowly condition the soil and help to break down the clay. When planting into containers plant into Kings Container Mix, as this has water retention crystals in it, which will help in keeping the soil moist.
Care
Watering
Watering is essential especially in the first year of planting to allow the roots to get well established. Water slowly, allowing the water to sink down into the roots, rather than just allowing it to run off the top of the surface of the soil, aiming to keep the soil moist during hot periods. Add Saturaid into the soil at planting time, as this helps to channel water down to the roots where it is needed the most.
Feeding
For strong healthy roots and plants, apply monthly applications of Aquaticus Organic Garden Booster, from spring through to the end of autumn, this encourages root growth and increases the microbial activity in the soil. Monthly applications of Kings Sheep Pellets will help with soil conditioning and plant health.
Mulching
Mulching around plants can help conserve moisture, regulate soil temperature, and reduce weed growth. Mulch around the base of the plants (making sure it is not in direct contact with the trunk or base of the plant) with Living Earth More than Mulch. Replenish mulch each spring.
Spraying
Generally pest free Cyathea should not need any spraying.
Pruning
Remove any brown fronds as required.
General Care
When using sprays, chemicals or fertilisers always read the label and follow the instructions carefully. Apply sprays in the evening to avoid harming beneficial insects.
Expert Tip
Crispy brown fronds are a result of under watering. The entire trunk of tree ferns are part of its roots. When watering hose the trunk as well.
Frequently Asked Questions
How do I prune my Cyathea?
Remove any brown fronds as required.
What pests and diseases affect Cyathea?
Cyathea is generally pest-resistant but can occasionally suffer from scale insects or aphids. Regularly inspect your plant and treat any infestations with insecticidal soap or neem oil.
How often should I water my Cyathea?
Watering is essential especially in the first year of planting to allow the roots to get well established. Water slowly, allowing the water to sink down into the roots, rather than just allowing it to run off the top of the surface of the soil, aiming to keep the soil moist during hot periods. Add Saturaid into the soil at planting time, as this helps to channel water down to the roots where it is needed the most.
What are the ideal growing conditions for Cyathea?
Cyathea thrives in a shady or partially shaded spot with well-draining soil. It prefers a humid environment and protection from strong winds.
How fast does Cyathea grow?
Cyathea has a moderate growth rate, producing new fronds each year. With proper care, it can become a striking feature in your garden over several years.