Hard Water Fern (Blechnum Wattsii) is a perennial fern in the Blechnaceae family with moderate care difficulty. It requires moderate watering and partial shade or dappled_shade or bright_shade light in USDA hardiness zones 7-10. This plant is safe for cats and dogs. It can be grown indoors.

Blechnum wattsii is a terrestrial fern native to Australia, known for its semi-evergreen nature and distinctive lance-shaped, toothed fronds with pink-tinged young leaves.