Cyathea medullaris | Black Tree Fern

Description: Cyathea medullaris, commonly known as the black tree fern, is a striking evergreen tree fern native to New Zealand and parts of the Pacific. It is one of the tallest tree ferns, capable of reaching heights of up to 65 feet (20 meters) in optimal conditions, with a straight, black, scaly trunk that gives the plant its common name. The trunk is adorned with a distinctive pattern left by fallen fronds. Its large, arching fronds can grow up to 10-16 feet (3-5 meters) long and are pinnately divided, creating a lush, feathery canopy. The dark, fibrous base of the fronds adds to the plant's dramatic appearance. Thriving in subtropical to temperate climates, Cyathea medullaris prefers moist, well-draining soils rich in organic matter and shaded or semi-shaded locations, though it can tolerate some sun in cooler regions. This iconic fern is a popular choice for tropical gardens, creating a prehistoric, forest-like ambiance. It also plays an important ecological role in its native habitat, providing shelter and contributing to the forest ecosystem. Zones 8-11 Germination To germinate Cyathea medullaris spores, begin by replicating the warm, moist conditions of its native forest environment. Collect ripe spores from mature fronds by placing a fertile frond segment on a piece of paper until the fine, dust-like spores are released. Sterilize a shallow container with a lid and fill it with a well-draining, sterile medium such as a mix of peat moss and sand or finely milled sphagnum moss. Moisten the medium with distilled or rainwater, ensuring it is damp but not waterlogged. Evenly scatter the spores across the surface without burying them, as they require light to germinate. Cover the container with a clear lid or plastic wrap to maintain high humidity and place it in a warm, shaded area with indirect light, ideally at a temperature of 70-75°F (21-24°C). Check regularly to ensure the medium remains moist but avoid overwatering. Germination can take several weeks to months, during which the spores will develop into a green, moss-like prothallus stage. Once prothalli appear and begin producing small fernlets, they can be carefully transplanted into individual pots with a similar growing medium, maintaining high humidity and partial shade until they mature.

Price: 14.79 USD

Location: San Francisco, California

End Time: 2025-01-16T23:17:30.000Z

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