Caring for a sword fern (Nephrolepis) in mineral substrate requires a few special steps to ensure the plant stays healthy and attractive. Here are some tips:
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Location: Place the sword fern in a bright spot, but without direct sunlight. A north-facing window is perfect.
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Temperature and humidity: Sword ferns feel most comfortable at temperatures between 18°C and 24°C. Ferns need high humidity to stay healthy and keep their leaves. They feel comfortable in the bathroom or kitchen, where there is a lot of cooking.
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Watering: Water your sword fern regularly to keep the mineral substrate slightly moist. If the substrate becomes too dry, the leaves can turn brown and die. A good trick is to pour about 1/3 of the water amount over the substrate and put the rest in the water tank.
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Fertilizing: Fertilize your fern occasionally, but avoid over-fertilizing, as the fern does not like that.
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Care and cleaning: Regularly remove dead leaves and clean the fern to improve ventilation and prevent mold growth.
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Pests and diseases: Watch for signs of pests like spider mites or aphids. If you find any, isolate the plant and treat the pests with insecticides.
By following these tips, you can keep your sword fern healthy and beautiful in mineral substrate. Remember that sword ferns are sensitive and it may take some time for the plant to adjust to the new substrate. Patience and regular care are the keys to success.
The author: Elisabeth Böttcher
Elisabeth is the managing director of AIRY and is responsible, among other things, for customer support. She has over ten years of experience with plants that grow in the AIRY biofilter and gladly shares her knowledge as an expert as well as tips and tricks. She focuses on healthy indoor air, effective plant care, and everything that contributes to a natural, beautiful home.
