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Wood small-reed

Calamagrostis epigejos · Poaceae

The gardener's calendar

The right move for September

Ideal time to plant wood small-reed: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Deciduous, semi-evergreen depending on climate
Flowering
July to September, silvery panicles
Mature size
80 to 150 cm in height
Growth
Fast
Hardiness
Very hardy, down to -20°C
Origin
Europe, temperate Asia
Soil type
Well-drained, tolerates poor to moist soils
Exposure
Full sun to part shade

Care

Watering

Once established, calamagrostis tolerates drought well and only needs regular watering during its first season. In very dry regions, keep the soil slightly moist in summer. Avoid standing water in winter.

Exposure

Plant in full sun for good density and better panicle coloration. Part shade is acceptable, but the plant becomes less compact. Avoid overly shaded areas where it weakens.

Pruning and cutting

Cut the stems flush with the ground in late winter (February-March), before growth resumes. This grass sometimes spreads via rhizomes: control its expansion by delimiting the space or planting it in a buried container. Remove faded flower heads to extend its ornamental appeal.

Soil and planting

Calamagrostis adapts to most soils, including poor or slightly moist ground. Well-drained soil prevents rot in winter. No major amendments needed; planting in autumn or spring is sufficient.

Fertilizing

An undemanding grass that doesn't require regular fertilizer. A light application of compost in spring boosts vigor, especially in very poor soil. Avoid overfeeding, which causes excessive elongation and weakness.

Diseases and pests

Very resistant to diseases. Foliage may suffer from powdery mildew in very humid, poorly ventilated conditions. Ensure good spacing to promote air circulation. No common specific pests.

Did you know?

Calamagrostis epigejos, once called "sand reed," was used in central Europe to stabilize coastal dunes and embankments. Its vigorous rhizomes create a root system that effectively holds soil in place, earning it a reputation as a "pioneer" species in ecological restoration. Its magnificent silvery panicles, which shimmer in the wind in late summer, also make it a star of modern landscape gardens.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.