The blade has four parts and is wider in the middle than at the top and base. Blechnum chilensis is originally found in Chili and the northern part of Argentinia. The botanical name 'Blechnum' stems from the ancient Greek word for fern 'Blechnon'. Blechnum species have spore-carrying and non-spore-carrying blades 'On the same plant', which can differ from each other in color and shape and thus aid in identifying the species.

Always water the tree fern in the crown. During warm weather, moisturize the trunk to prevent dehydration. During winter frost, bind the frond and cover the trunk with fleece. Make sure to also cover the soil around the trunk. One can put thatch in the crown. The placement of Blechnum chilensis is in 'Partial' shade, especially the trunk is best put in shade, while the leaves can endure a little more sun. Properly permeable, nutritious soil is most suitable. A 'Small' Blechnum chilensis can be placed inside, with the possibility of moving it outside during summer.The Blechnum chilensis is the most hardy kind of Dicksonia. The order of hardiness per species of tree fern 'The first being the most hardy' is as follows: Dicksonia fibrosa, Dicksonia antarctica, Blechnum nudum, Cyathea australis, Dicksonia squarrosa, Brainea insignis. This list is not comprehensive.