Arctomecon californicum
Las Vegas Bearpoppy · California Bearpoppy · Golden Bearpoppy
Also published as Arctomecon californica. You are in the right place.

About the plant
What it is and where it grows — not part of any germination protocol.
- Flower
- YellowRead from the photograph on this page
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Source: Read from the photograph on this page — Deno's Garden.
Worth knowing
- Pollinated by a specialist bee, the Mojave poppy bee. The species has declined sharply in recent decades: Nevada lists it as critically endangered and fully protected, and Arizona protects it too, though in 2024 the US Fish and Wildlife Service found a federal listing not warranted. Wikipedia: Arctomecon californica
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1996Difficulty High
Sow outdoors and leave it
Up in January.
No stated waiting before sowing.
29% germination.
This source doesn't state how long step 1 lasts.
Protocol 2
DerivedN. C. Deno, 1996Sow and cover
Temperature: 70°F 21°C Light: dark
No stated waiting before sowing.
0% germination.
Nothing germinated at 70.
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.