Growli

Container guide

Growing bok choy 'black summer' in a pot

Verdict
Ideal in pots
Pot size
12-15 cm (5-6 in) across
Mature size
About 20-30 cm (8-12 inches) tall and wide at harvest; baby leaves can be cut earlier.

Compost and drainage

Bok Choy 'Black Summer' 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 bok choy 'black summer' in a pot

Containers dry far faster than open ground, so bok choy 'black summer' in a pot needs checking more often than the general guidance of "Consistent moisture, roughly 2.5 cm (1 inch) of water per week" — 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 bok choy 'black summer' care

Growing bok choy 'black summer' in containers — FAQ

Can you grow bok choy 'black summer' in a pot?

Bok Choy 'Black Summer' is well suited to container growing — at about 30 cm mature it is comfortably pot-sized. A container around 12-15 cm (5-6 in) across gives it room without leaving the compost sitting wet, which is the usual mistake when people over-pot a small plant.

What size pot does bok choy 'black summer' need?

Aim for a container 12-15 cm (5-6 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 bok choy 'black summer' need in a container?

Bok Choy 'Black Summer' 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 bok choy 'black summer' in a pot?

Containers dry far faster than open ground, so bok choy 'black summer' in a pot needs checking more often than the general guidance of "Consistent moisture, roughly 2.5 cm (1 inch) of water per week" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.