Nephrolepis is coming from the Greek word nephros, which means a kidney and lepis which means a scale. The spores on these ferns have a kidney shape. Nephrolepis are also known as Ladder Fern and Sword Fern.
2-3 times a week in Summer, once a week in Winter.
Every 14 days in Spring and Summer, with liquid house-plant food.
In Spring in peat-based compost when pot is outgrown.
Sow spores in sterile soil and sterile pot. Mist lightly and cover with plastic wrap. Let stand in a container filled with 2 inches water. Place it in warm place in indirect light.
Divide mature plants in Spring, or potting up a plant-let taken from the parent plant. Collect spores by cutting off a healthy frond which contains black spores, drying it on a white sheet of paper.
Nephrolepis needs bright light without direct sunlight. It tolerates the amount of sun depending on how moisture the soil contains, the wetter the soil, the more sun-tolerant the fern.
When end of fronds become brown, cut them off with scissors just inside damaged area. Do not cut into healthy leaf.
Avoid draughts and never allow ferns to become dry at the roots. Cut back damaged fronds to within 2 inches of the compost in Spring. Let them grow again in humid atmosphere.
Nephrolepis looks beautiful decorated in urns, on pedestals, in hanging baskets, in an empty fire-place and in large terrariums.
Stand pot on moist pebble tray and mist regularly.
Scientists were able to revive a flowering plant from the fossilized fruit found in the stomach of an Arctic ground squirrel who was trapped in ice around 32,000 years ago.