Growli

Container guide

Growing pampas grass in a pot

Verdict
Outgrows pots in time
Pot size
40-60 cm (16-24 in) across
Mature size
Foliage clump 1.2-1.8 m (4-6 ft) tall and wide, with flower plumes towering to 2.5-3 m (8-10 ft) or more.

Compost and drainage

Pampas Grass 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 pampas grass in a pot

Containers dry far faster than open ground, so pampas grass in a pot needs checking more often than the general guidance of "Weekly while establishing; thereafter only in prolonged drought" — 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 pampas grass care

Growing pampas grass in containers — FAQ

Can you grow pampas grass in a pot?

Pampas Grass can be grown in a container while young, but it reaches about 10 m, so a pot is a medium-term home rather than a permanent one. Start it in a 40-60 cm (16-24 in) across planter, expect to pot on as it grows, and accept that container life will keep it smaller than it would be in open ground — which is often exactly what people want.

What size pot does pampas grass need?

Aim for a container 40-60 cm (16-24 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 pampas grass need in a container?

Pampas Grass 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 pampas grass in a pot?

Containers dry far faster than open ground, so pampas grass in a pot needs checking more often than the general guidance of "Weekly while establishing; thereafter only in prolonged drought" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.