10 Seeds Mexican Prickly Poppy Argemone mexicana Yellow Flower

Argemone mexicana, commonly known as the Mexican Prickly Poppy, is a striking annual wildflower prized for its unique, thistle-like foliage and showy, crepe-paper yellow blooms. This sun-loving plant adds bold texture and a touch of rustic charm to cottage gardens, wildflower meadows, or naturalized borders, making it a memorable conversation piece in any sunny spot.
Use these seeds to establish an ornamental display with a free-form, airy growth habit, as the plants branch naturally and bloom over a long season. These poppies perform best in well-drained, sandy or loamy soil and thrive with minimal care once established, making them a low-fuss choice for drought-prone areas.
Species: Argemone mexicana
Variety: Mexican Prickly Poppy
Type: Annual
Plant_Habit: Upright, branching
Sun: Full sun
Soil: Well-drained, sandy or loamy
Days_to_Harvest: Not applicable
Zones: 3–10
Germination: 7–21 days at 65–75°F
Sowing: Sow seeds directly outdoors after last frost, cover lightly
Spacing: 12–18 inches apart
Notes: Self-seeds readily