Dwarf Lily-turf
Ophiopogon japonicus · Asparagaceae
📷 Shabicht · CC0
The gardener's calendar
Dwarf lily-turf is in full bloom: enjoy it, watch watering in hot weather and let spent flowers feed pollinators before pruning.
ID card
- Common name
- Japanese Mondo Grass
- Foliage
- Evergreen, fine and linear
- Flowering
- August to September, small white flowers
- Adult size
- Approximately 30 cm in height
- Growth
- Slow to moderate
- Hardiness
- Down to approximately -15 °C
- Origin
- Japan and China
- Soil type
- Well-drained, rich in organic matter
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Plant it in fertile, light, humus-rich soil. It thickens slowly but steadily: be patient for 18-24 months before you get a nice full plant.
The common mistake
People get impatient and overload it with fertilizer to speed things up, which thins it out instead of densifying it.
The pro's trick
Lightly mulch in autumn with refined compost: it likes to gradually raise its planting level naturally, without the heart getting buried.
Seasonal watch
Dry summer: water regularly if there's no rain for 2 weeks, otherwise the foliage gets crispy and vigor suffers the following year.
Care
Watering
Keep the soil regularly moist, especially during growth and warm periods, without creating waterlogging. In winter, reduce watering while avoiding complete drying out. Ophiopogon appreciates a slightly cool and humid environment.
Light exposure
Place this plant in partial shade or dappled shade, particularly in warm climates. It also tolerates indirect and diffuse light from indoors. Avoid intense direct sun, which can scorch the delicate foliage.
Soil and substrate
Choose rich, well-draining soil that is slightly acidic to neutral, enriched with potting compost. Good drainage is essential to prevent root rot. You can add a little sand or perlite to improve aeration.
Fertilizing
Apply a balanced diluted fertilizer once or twice a month during spring and summer. Reduce or stop feeding in autumn and winter, the plant's dormant period. Excess nitrogen promotes foliage at the expense of flowering.
Pruning and maintenance
Regularly remove dead or damaged leaves to maintain a dense and tidy appearance. No severe pruning is necessary; this plant has naturally compact growth. You can divide clumps in spring to rejuvenate older plants.
Diseases and pests
Watch for spider mites and scale insects in dry environments. Excessive humidity can promote fungal rot or diseases. Maintain good air circulation and avoid watering the foliage late in the day.
Did you know?
Japanese mondo grass is a classic of Asian ornamental gardening, traditionally cultivated for its ground-cover qualities and evergreen foliage of a tender green much appreciated in zen gardens. Despite its delicate and elegant appearance, it is an extremely hardy and adaptable plant, capable of thriving for years in difficult conditions, making it an essential choice for botanical gardens worldwide.
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.