Boston Fern vs Calathea
Nephrolepis exaltata vs Calathea orbifolia
Both are pet-safe humidity-lovers competing for the same bathroom or terrarium spot.
Boston Fern and Calathea Orbifolia are the two most popular pet-safe humidity-loving plants — both produce dramatic foliage, both are non-toxic to cats and dogs per the ASPCA, both demand 60-80% humidity to thrive. The trade-off is difficulty: Boston Fern is moderate, Calathea is among the most challenging houseplants we list. Wrong pick equals crispy brown edges within weeks.
Quick verdict
| Use case | Winner |
|---|---|
| For pet households | Either works |
| For first-time plant owners | Boston Fern |
| For low-light rooms | Either works |
| For drought / forgetful watering | Neither — try a different plant |
| For small spaces | Calathea |
Side-by-side details
| Trait | Boston Fern | Calathea |
|---|---|---|
| Light | Medium indirect | Medium indirect |
| Water frequency | Every 3–5 days | Every 5–7 days |
| Humidity needs | 70–80% | 60–80% |
| Drought-tolerant | No | No |
| Difficulty | Moderate | Challenging |
| Mature height | 90 cm | 60 cm |
| Growth pattern | rosette | rosette |
| Pet safety | Pet-safe | Pet-safe |
Pet safety side-by-side
Boston Fern
Pet-safe
Non-toxic to both cats and dogs per the ASPCA. Safe to grow with pets in the room.
Calathea
Pet-safe
Non-toxic to both cats and dogs per the ASPCA. Safe to grow with pets in the room.
Our take
Pick Boston Fern if you have a humid bathroom and want easier care; pick Calathea Orbifolia only if you can commit to a humidifier or terrarium and want the photogenic silver-striped round leaves.
Frequently asked questions
Which is easier to care for, Boston Fern or Calathea?
Boston Fern is easier. Boston Fern difficulty: moderate. Calathea difficulty: challenging.
Is Boston Fern or Calathea safer around cats and dogs?
Both are pet-safe. Boston Fern: Pet-safe. Calathea: Pet-safe. Pet safety data is sourced from the ASPCA Animal Poison Control Center.
Can Boston Fern or Calathea handle low light?
Both handle low light. Boston Fern prefers medium indirect. Calathea prefers medium indirect.
How often should I water Boston Fern compared to Calathea?
Boston Fern: every 3-5 days. Calathea: every 5-7 days. Neither is drought-tolerant — both need consistent watering.