Calandrinia umbellata
Also published as Montiopsis umbellata, Montiopsis gilliesii. You are in the right place.

About the plant
What it is and where it grows — not part of any germination protocol.
- Native range
- Argentina Northeast, Argentina Northwest, Argentina South, Bolivia, Chile Central, Chile North and elsewhereGBIF Backbone Taxonomy
- Note
- Two different accepted species have been published under this name.World Flora Online
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: GBIF Backbone Taxonomy — Global Biodiversity Information Facility; World Flora Online — WFO Consortium.
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1993Difficulty Low
Start around March 22, 2027 for a May 3 last frost.
Sow and cover
Temperature: 70°F 21°C
No stated waiting before sowing. Then 14 days to germinate.
95% germination in 4–14 days.
Protocol 2
DerivedN. C. Deno, 1993Difficulty Low
Start around January 25, 2027 for a May 3 last frost.
Cold moist stratification
Temperature: 40°F 4°C
Germinates in the cold.
No stated waiting before sowing. Then 70 days to germinate.
84% germination in 49–70 days.
This source doesn't state how long.