Phemeranthus calycinus
Largeflower Fameflower · Fameflower
Also published as Talinum calycinum. You are in the right place.
About the plant
What it is and where it grows — not part of any germination protocol.
The plant
- Habit
- Herbaceous perennialPlant Finder
- Habit
- Perennial, Forb/herb, SubshrubPLANTS Database
- Height
- 0.5-0.75 ftPlant Finder
- Spread
- 0.75-1 ftPlant Finder
- Flower
- Showy; rose pink, rose redPlant Finder
- Blooms
- JulyPlant Finder
- Native range
- Central United StatesPlant Finder
- Native range
- Native to the lower 48 statesPLANTS Database
- Hardiness zones
- 5-9Plant Finder
Growing conditions
- Sun
- Full sun
- Soil
- Average, well-drained; prefers rocky or sandy
- Watering
- Dry to medium
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: Plant Finder — Missouri Botanical Garden; PLANTS Database — USDA NRCS.
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1993Difficulty Moderate
Start around December 26, 2026 for a May 3 last frost.
Cold moist stratification
Duration: 90 daysTemperature: 40°F 4°C
Deno gives no length for this period; three months is his standard cycle.
Warm moist stratification
Temperature: 70°F 21°C
17% in one sample and 50% in the other, over 2-10 days.
about 3 months from start to sowing. Then 10 days to germinate.
17% germination in 2–10 days.
Two samples that disagree -- 17% and 50%. Either way it is the only route that works.
This source doesn't state how long.
Protocol 2
DerivedN. C. Deno, 1993Sow and cover
Temperature: 70°F 21°C
Nothing.
No stated waiting before sowing.
0% germination.
Nothing at all. Deno's rule for the genus holds here: sowing at 40 beats sowing at 70.