Photo: WATANABE Hitoshi 渡辺仁CC BY 4.0via iNaturalistresized / cropped
Japanese Lawngrass Plant Care
Zoysia japonica Steud.
Updated · Sources · How we source care data
Zoysia japonica, commonly known as Japanese lawngrass, is distinguished by its fine-textured, deep green leaves that form dense mats. Originating from East Asia, this grass is popular among plant enthusiasts for its ability to tolerate heat and drought conditions.
Every 3–7 days
Full sun
60–80°F
40–60%
At a glance
How do you care for Japanese Lawngrass?
Water Japanese Lawngrass every 3–7 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 60–80°F (16–27°C) and 40–60% humidity. Fertilize it every month during the growing season.
Where Is the Japanese Lawngrass Native To?
What Is the Japanese Lawngrass?
Japanese Lawngrass (Zoysia japonica) belongs to the Poaceae family within the Zoysia genus. Japanese Lawngrass is native to the coastal grasslands of southeast Asia and Indonesia. Japanese Lawngrass is also known as Korean Lawngrass, Manila Grass, Zoysia Grass.
Japanese Lawngrass displays a fine-textured turfgrass growth habit, reaching up to tall with a spread of approximately 2 ft. Japanese Lawngrass produces produces inconspicuous flowers.
How Often Should You Water a Japanese Lawngrass?
Zoysia japonica requires watering every 3–7 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 3–7 days
Let soil partially dry between waterings
What Light Does the Japanese Lawngrass Need?
Japanese Lawngrass thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Japanese Lawngrass Prefer?
Zoysia japonica grows best at temperatures of 60–80°F. Japanese Lawngrass prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Japanese Lawngrass?
Well-draining sandy loam soil. Good drainage is essential for Japanese Lawngrass to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Japanese Lawngrass?
Feed Japanese Lawngrass every month during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Japanese Lawngrass?
Rarely needs repotting as it is a turfgrass. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Japanese Lawngrass?
Japanese Lawngrass can be propagated through seeds, plugs, sod. Similar propagation techniques also apply to australian native zoysia plant care, which shares the same genus.
Is the Japanese Lawngrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Japanese Lawngrass, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Japanese Lawngrass?
Japanese Lawngrass is susceptible to dollar spot, brown patch, armyworms. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Japanese Lawngrass Need?
Japanese Lawngrass grows outdoors in USDA Zone 5a – 10b. It survives winters down to planting zone 5a. Japanese Lawngrass is native to the coastal grasslands of southeast Asia and Indonesia.
Hardiness Zone
Zone 5a – 10b
Keep exploring plants
Japanese Lawngrass is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Zoysia genus — compare its care with other Zoysia species on PlantoScan.
Zoysia is part of the Poaceae plant family — browse all Poaceae genera and species.
Japanese Lawngrass thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Zoysia japonica Steud., family Poaceae (first published in Syn. Pl. Glumac. 1: 414 (1854)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Japanese Lawngrass, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: WATANABE Hitoshi 渡辺仁, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 5a – 10b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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