Japanese Forest Grass / Hakone Grass
Hakonechloa macra
description
Japanese Forest Grass is a graceful shade grass forming soft cascading mounds.
benefits
- Pet-friendly, non-toxic to animals
- Suitable for containers
How to care for Japanese Forest Grass
sunlight
In Japanese woodland, this grass grows beneath trees in cool, filtered light. Give it a sheltered spot with shade or gentle morning sun, especially in warmer climates.
Dappled shade
Ideal for north-facing beds, beneath open-canopy trees, or a shaded patio. It will stay healthiest where the soil does not bake dry.
Bright indirect light or morning sun
A few hours of mild morning sun can bring out stronger color, particularly in golden cultivars. Avoid intense afternoon sun, which can scorch the leaf tips.
watering
Keep Japanese forest grass evenly moist, especially in a pot. Letting the root ball dry hard can brown the leaf tips, while constantly saturated soil can rot the roots.
Spring to early autumn
Check about twice a week and water when the top 1 cm of soil feels dry. In warm weather, small pots or brighter positions may need water every 2-4 days. Water thoroughly until excess drains away.
Late autumn and winter
Growth slows in cool, low light conditions, so check roughly every 1-2 weeks. Water only when the upper few cm of the mix have dried, but do not leave a potted plant bone dry for long.
humidity
Preferred humidity
Japanese Forest Grass comes from cool, moist woodland edges and looks its best in moderately humid air. It usually tolerates typical household humidity of about 40% or more, but dry heat, sun, and wind can brown the leaf tips.
In heated rooms
Keep potted plants away from radiators, heating vents, and air conditioners. Outdoors, shelter the plant from drying wind and keep the root zone evenly moist.
temperature
Growing season
Winter dormancy
Native to cool Japanese woodland slopes, Japanese forest grass prefers mild summers and a real winter rest. It grows best outdoors in sheltered shade, where the soil stays cooler. In hot conditions above 27°C (80°F), especially with sun or dry soil, leaf tips may brown and growth can slow.
nutrition
March - August
Feed lightly while new growth is active. In pots, use a balanced liquid fertilizer at about half strength every 4-6 weeks, or top-dress with a slow-release fertilizer in spring. Do not feed in autumn or winter, when growth slows.
Nitrogen
Nitrogen supports the fresh, leafy growth that gives this grass its soft cascade. A light, balanced feed is enough - too much can make growth floppy and less colorful.
Potassium
Potassium supports sturdy growth and overall resilience, especially for container-grown plants. A balanced fertilizer supplies plenty without pushing excessive foliage.
soil
Moist, humus-rich, well-draining soil
Japanese forest grass grows best in soil that holds steady moisture but still lets excess water drain away. Use a quality all-purpose potting mix with compost or leaf mold, plus a little fine bark or perlite if it feels dense.
pH 5,5 - 6,5
This is slightly acidic soil, similar to woodland ground. Most peat- or compost-based potting mixes fall close to this range, so no special adjustment is usually needed.