Mexican daisy is a tender herbaceous perennial native to Mexico, Central America, and parts of South America but has naturalized in elsewhere including the west coast of the US. It is a member of the aster family, Asteraceae, that also includes true daisies, goldenrod, and lettuce. Growing from a woody rhizome the plant is trailing with a highly branched, wiry stem. The linear to oval leaves are slightly hairy, one inch long, and may be tipped with several teeth. The ¾” wide flowerheads have yellow disc flowers surrounded by white ray flowers that fade to pink at the end of a long bloom time. Plants readily colonize in cracks and crevices of paving or stone walls where they add color from late spring into fall.
Type: Herbaceous perennial
Bloom: The ¾” wide flowerheads have yellow disc flowers surrounded by white ray flowers that fade to pink from early spring to fall.
Size: 6-18” H x 2” W
Light: Full sun
Soil: Average, medium moist-dry, well-drained
Hardiness: Zones 9-10
Care: Dead head to encourage continual bloom; cut back hard mid-season if flowering declines
Pests and Diseases: None of significance
Propagation: Seed, basal cuttings, division
Companion Plants: Lavender cotton (Santolina chamaecyparissus), trailing bell flower (Campanula poscharskyana), red valerian (Centranthus ruber), lavender