I have a ladder fern nephrolepsis what type of growing conditions does it require ?

The Boston fern nephrolepsis  grows best in a warm, moist greenhouse.

It will grows quite satisfactorily indoors, providing it can be kept in a humid position.

One suggestion would be your bathroom.

 It likes a light position but not be in full sunshine.

Apply light spray of water overhead daily.

Feed between March and September with a liquid fertilizer for good growth.