Yellow Blue-eyed Grass
Sisyrinchium convolutum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
8 inches
Light
Full Sun, Partial Sun
Zones
8, 9
Water
Moderate, drought tolerant once established
Humidity
Prefers well-drained soil with low to moderate humidity
Lifespan
Perennial
Native To
Mexico to Peru
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Sisyrinchium convolutum is a perennial herbaceous plant featuring slender, grass-like foliage and star-shaped, bright yellow flowers that bloom in a graceful, airy manner. This species is noted for its drought tolerance and ability to thrive in well-drained soils, making it a versatile choice for rock gardens and perennial borders.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring
- Water regularly until established, then reduce watering
- Place in full sun for optimal blooming
- Divide every 3-4 years in early spring or fall
- Apply a layer of mulch to retain moisture and suppress weeds
- Remove spent flowers to encourage new blooms
Pro Tip
Ensure excellent drainage to prevent root rot and promote healthy growth
Keep It Thriving
Care Guide
Do
- Water regularly during dry periods 🌱
- Divide clumps every 3-4 years
- Remove dead or damaged leaves
- Apply mulch to conserve moisture
Don't
- Overwater to avoid root rot ❌
- Plant in heavy clay soil without amendments ❌
- Allow soil to become waterlogged ❌
- Neglect dividing and pruning
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Yellow Blue-eyed Grass questions
What zones can Yellow Blue-eyed Grass grow in?
Yellow Blue-eyed Grass is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Yellow Blue-eyed Grass deer resistant?
Not reliably. Deer may browse Yellow Blue-eyed Grass, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Yellow Blue-eyed Grass bloom?
Yellow Blue-eyed Grass typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Yellow Blue-eyed Grass need full sun?
Yellow Blue-eyed Grass does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Yellow Blue-eyed Grass drought tolerant?
Yes — once established (usually after the first full season), Yellow Blue-eyed Grass handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Sisyrinchium to compare
Lucerne Blue-eyed Grass
Sisyrinchium angustifolium 'Lucerne'
Suwannee Blue-eyed Grass
Sisyrinchium nashii 'Suwannee'
Western Blue-eyed Grass
Sisyrinchium bellum
Yellow Blue-eyed Grass
Sisyrinchium tinctorium 'Puerto Yellow'
Narrow-leaved Blue-eyed Grass
Sisyrinchium angustifolium
Devon Skies Blue-Eyed Grass
Sisyrinchium x hybrida 'Devon Skies'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Yellow Blue-eyed Grass 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.
