Container guide
Growing white arrow arum in a pot
Compost and drainage
White Arrow Arum likes steady moisture but not waterlogging — a tricky balance in a pot. Use a good peat-free compost with some added perlite for air, make sure the container drains freely, and mulch the surface to slow evaporation.
Watering white arrow arum in a pot
Containers dry far faster than open ground, so white arrow arum in a pot needs checking more often than the general guidance of "Continuously moist to waterlogged; never allow to dry out" — 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 white arrow arum care
Growing white arrow arum in containers — FAQ
Can you grow white arrow arum in a pot?
Yes — white arrow arum 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 90 cm, without so much spare compost that it stays soggy between waterings.
What size pot does white arrow arum 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 white arrow arum need in a container?
White Arrow Arum likes steady moisture but not waterlogging — a tricky balance in a pot. Use a good peat-free compost with some added perlite for air, make sure the container drains freely, and mulch the surface to slow evaporation.
How often should I water white arrow arum in a pot?
Containers dry far faster than open ground, so white arrow arum in a pot needs checking more often than the general guidance of "Continuously moist to waterlogged; never allow to dry out" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.