Growli

Container guide

Growing string of needles in a pot

Verdict
Ideal in pots
Pot size
20-30 cm (8-12 in) across
Mature size
Trailing up to 1.8 m (6 ft); slow-growing, around 15-20 cm of new growth per season

Compost and drainage

String of needles 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 string of needles in a pot

Containers dry far faster than open ground, so string of needles in a pot needs checking more often than the general guidance of "When soil is dry, every 10-14 days" — 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 string of needles care

Growing string of needles in containers — FAQ

Can you grow string of needles in a pot?

String of needles is well suited to container growing — at about 6 m mature it is comfortably pot-sized. A container around 20-30 cm (8-12 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 string of needles 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 string of needles need in a container?

String of needles 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 string of needles in a pot?

Containers dry far faster than open ground, so string of needles in a pot needs checking more often than the general guidance of "When soil is dry, every 10-14 days" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.