Container guide
Growing agapanthus 'navy blue' in a pot
Compost and drainage
Agapanthus 'Navy Blue' 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 agapanthus 'navy blue' in a pot
Containers dry far faster than open ground, so agapanthus 'navy blue' in a pot needs checking more often than the general guidance of "Weekly during active growth and budding; taper off as leaves die back in autumn" — 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 agapanthus 'navy blue' care
Growing agapanthus 'navy blue' in containers — FAQ
Can you grow agapanthus 'navy blue' in a pot?
Yes — agapanthus 'navy blue' 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 80 cm, without so much spare compost that it stays soggy between waterings.
What size pot does agapanthus 'navy blue' 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 agapanthus 'navy blue' need in a container?
Agapanthus 'Navy Blue' 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 agapanthus 'navy blue' in a pot?
Containers dry far faster than open ground, so agapanthus 'navy blue' in a pot needs checking more often than the general guidance of "Weekly during active growth and budding; taper off as leaves die back in autumn" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.