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Glyceria striata

Glyceria striata · Poaceae

The gardener's calendar

The right move for September

Ideal time to plant glyceria striata: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Family
Poaceae (grasses)
Foliage
Deciduous, light green to medium green
Flowering
July to September, purple to reddish spikelets
Mature size
60 to 120 cm in height
Growth
Fast to moderate
Hardiness
Very hardy (down to -20°C)
Origin
North America (wetland areas)
Soil type
Fresh to moist, tolerant

Care

Watering

Striped manna grass thrives in moist, cool environments. Keep the soil regularly moist during the growing season without letting it dry out. In natural areas or low-lying zones, it tolerates temporary water excess well. Moderate watering is sufficient in winter during dormancy.

Light Exposure

This grass develops ideally in full sun or partial shade. It prefers at least 4 to 6 hours of direct light for beautiful structure and optimal spikelet coloration. It tolerates partial shade well but may become slightly etiolated.

Soil and Drainage

Striped manna grass prefers fresh to moist soil rich in organic matter. It adapts well to clay or silty soils. Adding compost at the start of the season promotes vigor. It tolerates poor, dry soils poorly.

Pruning and Cleanup

Cut back the grass in late winter or very early spring, before growth resumes, to about 5-10 cm from the ground. This cutting stimulates vigorous new shoot development. Regularly remove dead or damaged leaves throughout the season.

Fertilizing

Fertilizer is generally not essential if the soil is enriched with compost. In poor soil or in containers, balanced nitrogen fertilizer in spring can boost growth. Avoid excess, which would encourage weak, lax growth.

Diseases and Pests

Striped manna grass is generally robust. It may suffer from fungal diseases in cases of extreme stagnant moisture, but this is rare. Watch for spider mite infestations in dry indoor conditions. Good air circulation prevents most problems.

Did you know?

Striped manna grass has historically been used in North America as an ornamental plant for water gardens and restored wetland areas. Its scientific name "Glyceria" comes from the Greek "glukus" meaning "sweet," because its seeds have a slightly sweet flavor appreciated by wild waterfowl, making it a useful plant for attracting wildlife to aquatic environments.

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.