A genus that includes dozens of varieties of fern, widespread in most of the temperate zones of the world; Blechnum spicant is also widespread in Italy; the most cultivated species are native to Asia, and generally fear the cold, and are therefore used as indoor plants. They form wide roundish bushes, formed by long light green leaves, which appear rolled up, and develop unrolling, until they reach the 50-60 cm of length.
Even if, in the wild, are diffused species producing short woody stems, as apartment plants, are cultivated species without stem; these are very decorative species, cultivable also in poorly luminous locations.
To obtain good results in the cultivation of the Blechnum spicant fern, it is best to grow in a shady or semi-shady place; in fact, these plants fear direct sunlight.
The species cultivated as apartment plants usually can’t stand temperatures below 10-12°C, so they can be brought outside in summer, while during the other months of the year they should be collected at home. The ideal temperature for this fern is around the 18 °C, seen that, in the wild, the Blechnum spicant are plants living in undergrowth environments.
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These are evergreen plants that in nature develop in the damp and fresh soils of the undergrowth; for a fern plant always healthy and well developed we suggest regular watering, avoiding the excesses that could lead to the onset of radical rottenness; for this reason it is good to let the soil dry slightly between one watering and the other. The water to be used should be lime-free, which can lead to problems for Blechnum spicant plants.
Ferns are plants that need the right degree of humidity, so it would be good to place the pot in a saucer resting on pebbles or expanded clay, so that the roots do not remain in contact with the water.
From March to October, provide fertiliser for green plants once a month, in a dose half that recommended on the packaging.
For the planting of these ferns, use a fairly rich, loose and soft, well drained soil. The plants tend to widen quite quickly, producing continuously new branches; it is therefore advisable to repot them at least every 2 years, if not annually, avoiding to exceed with the dimensions of the new container.
The repotting operation must be carried out at the beginning of the spring season.
The reproduction of these ferns for getting new specimens takes place by division of the heads, in autumn, or in spring, we can sow the yellowish spores found on the lower page of the branches, even if this type of operation is not very easy to apply independently.
Fern – Blechnum spicant: Parasites and diseases
These ferns fear cochineal, mites and aphids, even if properly cultivated plants are usually not attacked by parasites.
The water imbalances easily cause the drying of the branches in the lower part, periodically it is possible to intervene cutting at the base the ruined branches, to encourage the development of new branches.
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