The Pteris Evergemiensis, more commonly known as the Silver Lace Fern, is a fern with variegated foliage. The cream-white centre forms out into a dark green outer layer of colour, making this Fern a very neat and gorgeous ornamental plant to house. It is also a very durable plant that will appreciate high humidity levels, as well as areas that expose it to bright, indirect light direct light. he Pteris Evergemiensis can be grown in areas of high humidity, such as bathrooms, or places that can expose it to bright, indirect light. As far as watering goes, this Fern will do well in moderate levels of moisture, which should see you water it once every two weeks and mist the plant reguarly in between.