Kamuro-zasa
Pleioblastus viridistriatus · Poaceae
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The gardener's calendar
Ideal time to plant kamuro-zasa: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- Golden Bamboo with Variegated Foliage
- Family
- Poaceae (Grasses)
- Foliage
- Evergreen, variegated with yellow and green
- Adult height
- 0.8 to 1.2 m
- Hardiness
- -15 to -20 °C
- Growth
- Fast to moderate
- Origin
- Japan
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Cool, moist soil, partial shade. Water regularly.
The common mistake
Let it escape without a barrier — it colonizes everything within a few seasons.
The pro's trick
Pinch back young shoots in May: this promotes more ornamental lateral branching.
Care
Light
Place this bamboo in partial light or semi-shade to preserve the beautiful yellow-green variegation of its leaves. Too much shade will reduce the intensity of the colors. Avoid harsh afternoon sun in warm climates, which can dry out the foliage.
Watering
Keep the soil regularly moist but well-drained, especially during the growing season (spring-summer). Reduce watering in winter. In pots, monitor humidity more frequently as the substrate dries quickly. Avoid excess water which could promote rhizome rot.
Soil and planting
Prefer rich, slightly acidic soil that is well-structured. Incorporate compost or leaf mold when planting. In pots, use well-draining substrate for grasses or a potting mix-perlite blend. Bamboo tolerates slightly compacted soils but appreciates good aeration.
Pruning and cutting
Remove dead or overly dense stems in early spring. You can cut back tired culms to 5-10 cm from the ground to rejuvenate the clump. Regularly remove dried leaves to maintain a neat appearance. This dwarf species requires only light maintenance pruning.
Fertilizing
Apply balanced fertilizer in spring (April-May) and possibly a second dose in June. An annual compost application is generally sufficient to support growth. Avoid excess nitrogen which would make the plant too loose and sprawling.
Diseases and pests
This species is generally robust. Indoors or in stagnant humid conditions, watch for scale insects and spider mites. Powdery mildew can appear with excessive humidity and poor air circulation. Favor prevention through good aeration and regular maintenance.
Did you know?
Pleioblastus viridistriatus has been prized in Japan for centuries for its luminous variegation, particularly sought after in small urban gardens and container compositions. Its name "viridistriatus" literally means "striped with green," but its golden culms and yellow-green leaves make it one of the most colorful dwarf bamboos, capable of transforming a small shaded corner into a striking focal point.
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.