The scientific name for the heart leaf fern is Hemionitis arifolia and is commonly referred to by a number of names, including tongue fern. First identified in 1859, heart leaf ferns are native to Southeast Asia. It is a delicate dwarf fern, which is also an epiphyte, meaning it grows upon trees as well.
Small: 3.5-4 inch standard nursery pot.
Medium: 6 inch standard nursery pot.
You should keep your heart fern in a warm area between 60 and 80 degrees. Do not expose the plant to direct sunlight but give it a lot of indirect light.
Water: 3-4 days. Ferns love to remain moist at all times and never want to dry out. Drainage is recommended to prevent the soil from becoming water-logged. Fertilizer: If you feel the need to, you can use a balanced houseplant fertilizer once a month, or every other week in the summer.
Plant Specific Care
The heart fern houseplant needs bright, indirect sunlight. Keep the plant moist, but not wet, as it is prone to rot. Ideally, you should use soft water or let hard tap water sit overnight to dissipate the harsh chemicals and then use the next day. Heart fern is also prone to scale, mealybugs, and aphids.