Container guide
Growing boston fern in a pot
Compost and drainage
Boston Fern needs sharp drainage, so this matters more in a pot than in the ground. Use a free-draining mix (add perlite, grit or bark to standard compost), always pick a container with drainage holes, and never let it stand in a saucer of water.
Watering boston fern in a pot
Containers dry far faster than open ground, so boston fern in a pot needs checking more often than the general guidance of "Every 3–4 days in spring and summer; every 5–7 days in winter" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.
Potting on
Pot on when roots show through the drainage holes or growth slows noticeably — usually every 1-2 years for a plant this size. Move up one pot size only; jumping several sizes leaves wet compost the roots cannot reach, and that is what rots them.
More boston fern care
- Growing boston fern in a pot — the species this cultivar belongs to
- Growing boston fern in a pot — our other guide for the same plant
- Full boston fern care guide
- Best soil for boston fern
- When to repot boston fern
- How often to water boston fern
- How to overwinter boston fern
- Best app for indoor plants — reminders and light checks tested
Growing boston fern in containers — FAQ
Can you grow boston fern in a pot?
Yes — boston fern does well in a pot. Aim for a container around 20-30 cm (8-12 in) across: enough root room for it to reach about 1.2 m, without so much spare compost that it stays soggy between waterings.
What size pot does boston fern need?
Aim for a container 20-30 cm (8-12 in) across. Pot on when roots show through the drainage holes or growth slows noticeably — usually every 1-2 years for a plant this size. Move up one pot size only; jumping several sizes leaves wet compost the roots cannot reach, and that is what rots them.
What compost and drainage does boston fern need in a container?
Boston Fern needs sharp drainage, so this matters more in a pot than in the ground. Use a free-draining mix (add perlite, grit or bark to standard compost), always pick a container with drainage holes, and never let it stand in a saucer of water.
How often should I water boston fern in a pot?
Containers dry far faster than open ground, so boston fern in a pot needs checking more often than the general guidance of "Every 3–4 days in spring and summer; every 5–7 days in winter" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.