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Dicksonia antarctica, commonly known as the Tree Fern or Soft Tree Fern, is a popular outdoor plant in the UK. It is native to temperate regions of Australia and Tasmania but can be successfully grown in the UK under the right conditions. Here are some care instructions for Dicksonia antarctica in an outdoor setting in the UK:
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Planting location: Choose a site that offers partial shade or filtered sunlight. Dicksonia antarctica prefers sheltered areas that provide protection from strong winds. The soil should be well-draining and rich in organic matter.
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Soil preparation: Before planting, amend the soil with organic matter such as compost or well-rotted manure to improve its fertility and drainage. This will help create a suitable growing environment for the fern.
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Watering: Tree ferns require consistent moisture but should not be waterlogged. During dry periods, water the fern thoroughly to ensure the soil remains moist. Avoid overwatering, as this can lead to root rot. Mulching around the base of the plant can help retain soil moisture.
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Feeding: Apply a balanced, slow-release fertilizer in spring to provide essential nutrients for healthy growth. Follow the manufacturer's instructions for the appropriate dosage. Alternatively, you can use a liquid fertilizer formulated for ferns, applying it every two to three weeks during the growing season.
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Protection from frost: Dicksonia antarctica is frost-tender and requires protection during winter months in the UK. In colder regions, consider wrapping the trunk with horticultural fleece or bubble wrap to insulate it. You can also cover the crown with a layer of straw or dry leaves for added protection.
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Pruning: Remove any dead or damaged fronds (leaves) throughout the year to maintain the plant's appearance and overall health. Be careful not to remove too many fronds at once, as this can stress the plant. Pruning can be done as needed.
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Winter protection: During colder months, you can further protect the fern by covering the crown with a layer of straw or dry leaves. This will help insulate it from freezing temperatures. Avoid using plastic wraps, as they can trap moisture and lead to fungal issues.