Argemone grandiflora

White Mexican Poppy · White Large-flowered Prickly-poppy

Family PapaveraceaeGenus Argemone

A large white flower with crinkled petals and a yellow center, among spiny, deeply cut gray-green leaves — **Flower**Javier HernandezCC BY 4.0

A color plate of white crumpled poppies with yellow stamens on a prickly-leaved stem, with a spiny bud, a seed and a flower in section drawn beside it — **Illustration**Bois, D.; Frederick Warne (Firm); Herincq, B.; Step, Edward; Watson, WilliamPublic domain

About the plant

What it is and where it grows — not part of any germination protocol.

Habit: annual or perennialPlants of the World Online
Flower: WhiteRead from the photograph on this page
Native range: Mexico Gulf, Mexico Northeast, Mexico NorthwestGBIF Backbone Taxonomy

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Protocol

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Sow and cover
Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 11 days to germinate.

100% germination in 6–11 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