Hypoxis hirsuta
Common Goldstar · Yellow Star-grass · Common Star Grass
About the plant
What it is and where it grows — not part of any germination protocol.
The plant
- Habit
- Herbaceous Perennial, WildflowerExtension Gardener Plant Toolbox
- Habit
- tuberous geophytePlants of the World Online
- Height
- 3-10 in10-25 cmExtension Gardener Plant Toolbox
- Spread
- 1-1.3 ft30-40 cmExtension Gardener Plant Toolbox
- Flower
- Gold/YellowExtension Gardener Plant Toolbox
- Blooms
- Spring, SummerExtension Gardener Plant Toolbox
- Native range
- Canada, lower 48 statesPLANTS Database
- Hardiness zones
- 3-9Extension Gardener Plant Toolbox
Growing conditions
- Sun
- Full sun; Partial ShadeExtension Gardener Plant Toolbox
- Soil
- Loam (Silt), Sand, Shallow RockyExtension Gardener Plant Toolbox
- Soil pH
- Acid (<6.0)Extension Gardener Plant Toolbox
- Moisture
- Good Drainage, Occasionally DryExtension Gardener Plant Toolbox
- Watering
- Drought tolerance: MediumPLANTS Database
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: Extension Gardener Plant Toolbox — NC State Extension; Plants of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS.
Worth knowing
- Easy to mistake for a grass until its yellow star-shaped flowers appear. Lady Bird Johnson Wildflower Center: Hypoxis hirsuta
Protocol
DerivedN. C. Deno, 1993Difficulty Very high
Sow and cover
Temperature: 70°F 21°C
No stated waiting before sowing. Then 28 days to germinate.
3% germination in 28 days.
How each step is done, in Deno’s words, and what Verified and Derived mean.
Germination trials
Readers’ own records of sowing this species, published after review. Share your trial · All trials
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