Yellow-horned Poppy

Glaucium flavum

[glaucium_flavum]

An Old World native, Yellow-horned Poppy was observed naturalized along the New England coast as early as the seventeenth century. Thomas Jefferson planted seeds at Monticello in an oval bed southeast of the house in 1807.
This unusual biennial, sometimes a perennial, has curious yellow flowers and strange "horned" seed pods. It also has attractive bluish-gray, or glaucous, leaves that are most ornamental.

Growth Type: Biennial Color(s): Yello Hardiness Zones: 4 - 8 Location at Monticello: West Lawn Planting Conditions: Full Sun Map it: 38.010076,-78.453618

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Blooming Dates 2002: May 4 – Jul 232003: Jun 13 – Jul 42004: Jul 29 – Nov 122005: May 19 – Nov 82006: May 19 – Oct 272007: May 15 – Sep 282008: May 2 – Jun 242008: Aug 29 – Oct 132009: May 11 – Jul 102010: Jun 18 – Sep 142011: May 17 – Jul 72012: May 3 – Jun 222013: May 15 – Jul 12014: May 12 – current