Growli

Container guide

Growing blue lyme grass in a pot

Verdict
Grows well in pots
Pot size
20-30 cm (8-12 in) across
Mature size
Foliage about 60-90 cm (2-3 ft) tall, with flower stems to roughly 120 cm; spread is effectively unlimited by rhizomes unless contained.

Compost and drainage

Blue Lyme 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 blue lyme grass in a pot

Containers dry far faster than open ground, so blue lyme grass in a pot needs checking more often than the general guidance of "Drought-tolerant; water only in prolonged dry spells once established" — 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 blue lyme grass care

Growing blue lyme grass in containers — FAQ

Can you grow blue lyme grass in a pot?

Yes — blue lyme grass 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 1.2 m, without so much spare compost that it stays soggy between waterings.

What size pot does blue lyme grass 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 blue lyme grass need in a container?

Blue Lyme 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 blue lyme grass in a pot?

Containers dry far faster than open ground, so blue lyme grass in a pot needs checking more often than the general guidance of "Drought-tolerant; water only in prolonged dry spells once established" — especially in summer, wind, or a heated room. Check the top few centimetres with a finger rather than watering on a fixed day.