Annual beard grass
Polypogon monspeliensis · Poaceae
The gardener's calendar
Ideal time to plant annual beard grass: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Poaceae (grasses)
- Foliage
- Deciduous, fine and graceful
- Flowering
- Spring to summer (April to July)
- Adult size
- 30 to 60 cm tall
- Growth
- Fast
- Hardiness
- Not very hardy, prefers temperate climates
- Origin
- Mediterranean Basin (Montpellier, France)
- Soil type
- Moist, slightly clayey or sandy soils
Care
Watering
Polypogon enjoys fresh, well-moist soils. Water regularly during the growing season, especially during prolonged dry spells. Reduce watering in winter if the plant goes dormant. Avoid waterlogging, which could promote root rot.
Exposure
Place Polypogon in full sun or partial shade. This grass appreciates light to develop dense foliage and regular flower spikes. In very hot and dry climates, light shade can protect it from water stress.
Soil and drainage
Choose rich, slightly humus-rich and well-draining soil despite moisture needs. Soil that is too poor will slow growth. Adding organic matter (compost) at planting time improves water retention and fertility.
Pruning and cleaning
Cut the grass back to 10-15 cm from the ground in late winter or early spring, before growth resumes. Remove dried foliage to encourage new shoots to emerge. Remove faded flower heads if you want to extend flowering.
Fertilizer
A balanced fertilizer application in spring is sufficient to support growth. Avoid excess nitrogen, which would favour lush foliage at the expense of flowering. Well-decomposed organic matter can replace chemical fertilizer.
Diseases and pests
Polypogon is generally resistant to pests and diseases. Excessive moisture can promote leaf fungi: ensure good air circulation around the plant and avoid watering late in the afternoon. Plant it away from stagnant areas to prevent health problems.
Did you know?
Polypogon monspeliensis gets its name from the city of Montpellier, where it naturally grows in humid Mediterranean environments. This annual or winter grass produces very fine feathery spikes, reminiscent of plumes, that sway gracefully in the wind — hence its evocative nickname. In ornamental horticulture, it is mainly appreciated by Mediterranean gardeners and landscape designers for creating movement and lightness in flower compositions.
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.
Add this plant to my garden →Plants from the same family
- Tufted hair grassDeschampsia cespitosa
- Wavy hair-grassAvenella flexuosa
- Purple moor-grassMolinia caerulea
- Reed canary-grassPhalaris arundinacea
- Common quaking grassBriza media
- Creeping soft-grassHolcus mollis
Tips generated and checked by Viridia — adapt them to your local climate.