Alphabetical Plant Listing

Argemone mexicana (Mexican Prickly Poppy)

Mexican Prickly Poppy, Mexican Prickly Poppy, Yellow Prickly Poppy


Argemone mexicana (Mexican Prickly Poppy) is an upright, prickly, annual or biennial boasting bright yellow, poppy-like flowers, 2.5 in. across (6 cm), with numerous yellow or reddish stamens. Blooming for weeks in mid spring to early summer, the showy blooms sit atop smooth or slightly prickly stems. Resembling thistle leaves, the bluish-green leaves are toothed, spiny and adorned with conspicuous grey-white veins. All parts of the plant release a milky latex sap when damaged. Easy to grow, deer resistant, Mexican Prickly Poppy will reseed and colonize, maintaining its presence in the garden. Its showy flowers make it a bright addition to a native or wildflower garden.

  • Grows up to 8-18 in. tall (20-45 cm) and 4 in. wide (10 cm).
  • Performs best in full sun in light well-drained soils. Deer resistant.
  • Propagate by seed.
  • All parts of this plant are extremely toxic.
  • Native native to southeastern USA (Florida), Mexico, Central America, the Caribbean and tropical South America.

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Requirements

Hardiness 2 – 11
Heat Zones 1 – 11
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Annuals
Exposure Full Sun
Season of Interest Spring (Mid,Late)
Summer (Early)
Height 8" – 2' (20cm – 60cm)
Spread 4" (10cm)
Spacing 4" (10cm)
Water Needs Low
Maintenance Low
Soil Type Sand
Soil pH Acid, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Missouri, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, Vermont, Southeast, Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Southwest, Arizona, Texas
Tolerance Deer, Drought
Garden Styles Informal and Cottage, Mediterranean Garden, Prairie and Meadow

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 2 – 11
Heat Zones 1 – 11
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Annuals
Exposure Full Sun
Season of Interest Spring (Mid,Late)
Summer (Early)
Height 8" – 2' (20cm – 60cm)
Spread 4" (10cm)
Spacing 4" (10cm)
Water Needs Low
Maintenance Low
Soil Type Sand
Soil pH Acid, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Missouri, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, Vermont, Southeast, Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Southwest, Arizona, Texas
Tolerance Deer, Drought
Garden Styles Informal and Cottage, Mediterranean Garden, Prairie and Meadow

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Argemone mexicana (Mexican Prickly Poppy)

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