Ferns are known as the epitome of undergrowth plants, thriving naturally under the towering trees of our forests. Blue star fern (a.k.a. Phlebodium aureum) is in a fern family called Polypodiaceae and is native to the tropical forests of South America. Characteristic of its family, in nature, blue star fern travels by rhizomes up the trunks of trees, making it an epiphyte like so many of our favorite houseplants. Its finger-like frond shape, bold venation, and blue coloring add interesting visual texture to any foliage collection. 

Sometimes, to understand a plant’s character, it helps to dig deeper into the root of the matter--the Latin and Greek roots to be exact. Phleb- is a Greek root meaning vein, referring to the plant’s distinctive veins. Blue star fern’s scientific epithet, aureum, means gold in Latin and is derived from the species’ rhizome color. Easy to distinguish from others of its kind, the blue star fern is without a doubt a golden addition to the botanical world.

While most ferns enjoy low light, humid climates, and moist soil conditions, blue star ferns are more flexible. They can handle a bit more light and a little less moisture, making them an excellent easy-care choice for your interior. Read on to learn more about the care for this fantastic fern!

How to Care for Blue Star Fern

Light Exposure

Most ferns tolerate the darker corners of our interiors, but blue star ferns need more light exposure. Look for areas in your home that provide indirect exposure from a north or east-facing window.

Water & Media Type

Blue star ferns can be watered when the top one to two inches of media feels dry to the touch. Regularly check to make sure that your plant doesn’t dry completely before watering. Water from below by placing the grower’s pot in a container of water for about 15 minutes to avoid wetting the foliage. Allow to drain fully before replacing into the decorative pot.

If repotting, be sure to use well-drained media and containers with drainage holes that quickly drain excess moisture. Keep in mind that blue star ferns are epiphytes; sitting moisture in the root zone can lead to root decay.

Fertilization

Like most interior plants, blue star fern requires sparing fertilization. Avoid over-fertilizing by using slow-release pelleted fertilizer every six months at the bottle recommendation for interior plants. 

Temperature & Climate

Because blue star ferns are native to a rainforest climate, they enjoy humidity and moderate temperatures between 60 and 80 degrees Fahrenheit. Keep your blue star fern away from drafts near vents and frequently opened windows and doors. If you are concerned about humidity levels, try a humidity tray under the plant or adding a humidifier nearby. Clustering the plant amidst other leafy friends will also assist in raising the microclimate around it.

Common Problems

The most common problem when caring for blue star fern is root decay from overwatering, which can cause yellowed foliage and eventual plant demise. To avoid overwatering, check moisture levels by feel prior to watering rather than watering routinely. Proper watering can prevent most problems when caring for this plant.

Another great attribute of the Blue star fern that makes it a great addition to your plant collection, is that it is pet friendly, like most ferns. Learn what other Wild Interiors plants are pet-friendly, here.

Have any lingering questions about the Blue star fern? Reach out to us with your questions at @wild_interiors on Instagram or plantcare@wildinteriors.com.