The Story
Plant Bio
Carex siderosticta is a broad-leaved, deciduous or semi-evergreen sedge native to East Asia. It is noted for being one of the few sedges with wide leaves and a running habit, spreading by rhizomes to form colonies.
'Shima-nishiki' is a cultivar distinguished by its brightly variegated foliage. The wide, grass-like leaves feature bold creamy-white stripes on a green background. It is valued as a colorful, slowly-spreading groundcover for shady, moist areas.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Grass
Height
8 inches
Width
15 inches
Light
Partial Sun, Shade
Zones
5, 6, 7, 8, 9
Water
Moist
Humidity
Average
Lifespan
Perennial
Native To
Asia
Toxicity
Non-toxic
Bloom period
Early spring – Late fall
In flower about 9 months of the year
Planting
How to Grow
- Tuck seeds into moist soil in early spring.
- Mist cuttings regularly to maintain humidity.
- Plant in shaded to partially shaded areas.
- Water consistently to keep soil moist.
- Mulch around base to retain moisture.
- Divide clumps every 3-4 years for vigor.
Pro Tip
Maintain consistent moisture for healthy growth.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Mulch to retain moisture and suppress weeds
- Divide every 3-4 years for plant vigor
Don't
- Allow soil to dry out completely ❌
- Expose to full sun, which can scorch the foliage
- Neglect division, which can lead to overcrowding
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Shima-nishiki Variegated Broadleaf Sedge questions
What zones can Shima-nishiki Variegated Broadleaf Sedge grow in?
Shima-nishiki Variegated Broadleaf Sedge is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Shima-nishiki Variegated Broadleaf Sedge deer resistant?
Yes — Shima-nishiki Variegated Broadleaf Sedge is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Shima-nishiki Variegated Broadleaf Sedge bloom?
Shima-nishiki Variegated Broadleaf Sedge typically blooms in early spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Shima-nishiki Variegated Broadleaf Sedge need full sun?
Shima-nishiki Variegated Broadleaf Sedge does best in part shade.
More Carex to compare
Pennsylvania Sedge
Carex pensylvanica
Everillo Sedge
Carex omegata 'Everillo'
Japanese Sedge
Carex morrowii
Evergold Japanese Sedge
Carex oshimensis 'Evergold'
Shortbeak Sedge
Carex brevior
Comosa Sedge
Carex comosa
Keep exploring
Explore the genus
Hardy in your zone?
Grow Shima-nishiki Variegated Broadleaf Sedge with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.