Costa Farms


Passionate about plants? So are we! Costa Farms is a wholesale grower that discovers, develops, and grows plants for your home and life -- indoors and out. We’re your online gardening resource for plant info and inspiration. Our articles, blogs, tips, and photos help you use plants to beautify your living spaces and enhance your life.

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Boston Fern

Nephrolepis exaltata

Boston Fern Plant Features

For over a hundred years, Boston ferns have played a starring role inside and out of America homes. This voluptuous, easy-care, fern grows just as well on porches and patios as it does gracing your front hall or living room. Boston ferns graceful produce arching branches covered with soft, emerald-green fronds. Indoors, Boston ferns will also help remove toxins such as toluene and xylene from the air. Hardy from zones 10-12.

Boston Fern Questions?
Email us your questions and one of our fern-growing experts will get back to you!

Boston Fern Growing Instructions

Like other ferns, Boston fern is relatively easy to grow indoors or out. It does best in high humidity and with consistently moist soil. If it dries out too much, the fronds turn brown and crispy. Outdoors it thrives in shade or part shade, and appreciates protection from hot, drying winds. Indoors, it likes a medium to bright spot (but out of direct sun) and protection from hot, dry air coming from heating vents. Boston ferns enjoy being misted when grown inside over the winter. Fertilize every two months with a liquid houseplant fertilizer. 

Get more tips for buying and growing Boston fern!

Please note: Boston fern is not intended for human or animal consumption

Special Care

In very warm climates, Boston fern can be grown outdoors all year long. However, throughout most of the country, 
Boston ferns should be grown as houseplants during the winter. Bring your plants inside when frost threatens.

  • Light

    Indoors: Medium light

  • Colors


  • Water

    Medium water needs

  • Special Features

    Purifies the air
    Super-easy to grow

Q: My Boston ferns often develop yellow leaflets that litter the floor. How can I stop them from doing that?

Boston ferns grow best in a humid atmosphere so mist them frequently to hydrate the foliage. Also, keep them away from heat ducts or radiators that might dry them out. And, keep the soil just slightly moist at all times. Boston ferns don't like to sit in water, but don't like to dry out completely either.