Lush Boston fern in a terracotta pot on a wooden stool
Fig. 01Boston fern

Bostonfern

Nephrolepis exaltataFamily Nephrolepidaceae

Also known as Sword fern

Long, lush fronds that spill over like a green fountain. Perfect for hanging on porches and in bright bathrooms.

  • LightMedium to bright indirect
  • WaterKeep the soil slightly moist
  • HumidityHigh
  • Temperature61–80 °F (16–27 °C)
  • PetsNon-toxic to dogs and cats
  • DifficultyModerate

Light

It does well in medium to bright indirect light. Direct sun yellows and scorches the fronds.

Watering

Keep the soil slightly moist at all times — never bone-dry, never soggy. On hot days it may need water more often.

Soil and pot

Use a rich mix that holds moisture but drains, in a hanging basket or on a stand so the fronds can spill freely. Cut dry fronds off at the base.

Humidity and temperature

It needs high humidity. If your home is dry, a bathroom or a shady porch is a good spot.

In the Dominican Republic

Hanging on a shady porch, it usually does very well with the local humidity. In the drier months or in strong breezes it can dry out fast, so check the soil more often.

Also known as

Helecho de Boston
Common Spanish name
Helecho espada
Common Spanish name
Helecho común
Common Spanish name
Helecho doméstico
Common Spanish name
Boston fern
Common English name
Sword fern
Common English name

Common problems

  • Dry brown frondsIt needs more water or humidity; water more often and raise the humidity.
  • Shedding lots of leafletsThe soil dried out completely or it was moved suddenly; keep watering consistent.
  • Yellow or pale frondsToo much water or direct sun; check the drainage and the location.
Checking the underside of a leaf with a magnifying glass
Fig. 02Check the undersides of the leaves every week.

Is your Boston fern looking off?

Message the doctor
Calathea orbifolia with round silver-striped leaves in a ceramic pot
Fig. 03Calathea orbifolia — Goeppertia orbifolia

Calathea orbifolia

Goeppertia orbifolia

Medium indirect light Pet-safe

CareAttentive
Pothos with green and gold leaves trailing from a terracotta pot on a shelf
Fig. 04Pothos — Epipremnum aureum, E. pinnatum

Pothos

Epipremnum aureum, E. pinnatum

Tolerates low light Toxic to pets

CareVery easy
Monstera adansonii with fenestrated leaves in a terracotta pot by a window
Fig. 05Monstera — Monstera adansonii, M. epipremnoides

Monstera

Monstera adansonii, M. epipremnoides

Bright indirect light Toxic to pets

CareEasy