These can be left on 24 hours a day or turned off during warm hours to keep the temperature down. Wait for ferns to grow If the sowing container is sealed, no watering is necessary. The fishing lure containers are almost air-tight and only need watering about every 2 months. I usually transplant individual ferns instead of fern clumps in order to observe the growth characteristics of the individual plants. Growth and survival rates are similar with either method.
Aseptic technique is less important after they are transplanted.
During the first year or so, as the ferns begin to mature, they gradually start requiring the environmental conditions of the full grown plant. For unfamiliar ferns, I always transplant about 2 or 3 times as many as needed to cover losses during the first 2 years. By the end of the first year, most medium-sized ferns fill 2.5 inch pots and have fronds 4 to 12 inches long. I put all leftovers in the same sealed clear plastic tackle box that is kept on a shelf about 6 feet from a window in our basement. No attempt is made to use sterile techniques.