Aira praecox
Aira praecox · Poaceae
The gardener's calendar
Ideal time to plant aira praecox: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous, fine and delicate
- Flowering
- Spring (March to May)
- Adult size
- 15 to 30 cm tall
- Growth
- Fast
- Hardiness
- Very hardy, down to -15 °C
- Origin
- Western and central Europe
- Soil type
- Well-drained, poor to moderately fertile
Care
Exposure
Early hairgrass prefers a sunny or partially shaded location. In full sun, it develops more vigorously and flowers more abundantly. It tolerates lightly shaded situations well but dislikes prolonged deep shade.
Soil and planting
This grass appreciates well-drained, light soils that are rather poor. It adapts well to sandy, gravelly or rocky terrain. Avoid heavy soils and waterlogged conditions that promote root rot.
Watering
During the spring growing period, keep the soil moderately moist. Once established, early hairgrass tolerates drought well and requires only occasional watering. Drastically reduce watering in summer and autumn.
Pruning and maintenance
Comb out the clumps with a fine-toothed comb or cut back to 5-10 cm tall in early spring to remove dead material and encourage new growth. Remove faded flower heads to prevent excessive self-seeding if desired.
Fertilizing
No fertilizer is necessary. This grass prefers poor soils and excessive fertilizer could weaken it or promote excessive foliage development at the expense of structure.
Pests and diseases
Early hairgrass is naturally very resistant to pests and diseases. Excess moisture is its main enemy and can cause root rot. Ensure optimal drainage.
Did you know?
Aira praecox owes its specific name 'praecox' (precocious) to its very early spring flowering, well before most grasses. Once very common in lean grasslands and European heathlands, it has practically disappeared from many natural habitats due to agricultural intensification, making it now a species of growing ecological interest for the restoration of semi-natural habitats.
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.