Ipomopsis rubra
Indian Spur · Spanish Larkspur · Texas Plume · Standing-cypress
About the plant
What it is and where it grows — not part of any germination protocol.
The plant
- Habit
- Annual, Herbaceous Perennial, WildflowerExtension Gardener Plant Toolbox
- Habit
- biennialPlants of the World Online
- Height
- 2-6 ft0.6-1.8 mExtension Gardener Plant Toolbox
- Spread
- 1-2 ft30-60 cmExtension Gardener Plant Toolbox
- Flower
- Red/BurgundyExtension Gardener Plant Toolbox
- Blooms
- SummerExtension Gardener Plant Toolbox
- Native range
- Native to the lower 48 statesPLANTS Database
- Hardiness zones
- 6-9Extension Gardener Plant Toolbox
Growing conditions
- Sun
- Full sunExtension Gardener Plant Toolbox
- Soil
- Loam (Silt), Sand, Shallow RockyExtension Gardener Plant Toolbox
- Moisture
- Good Drainage, Occasionally DryExtension Gardener Plant Toolbox
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
- Its red trumpets open from the top of the spike downward, and draw hummingbirds. Lady Bird Johnson Wildflower Center: Ipomopsis rubra
Protocol
DerivedN. C. Deno, 1998Difficulty Low
Sow and cover
Temperature: 70°F 21°C Light: dark
No stated waiting before sowing. Then 14 days to germinate.
90% germination in 14 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
No trials shared for this species yet.