Leucanthemum superbum

Leucanthemum x superbum (Asteraceae) is a hybrid perennial created in 1890 by Luther Burbank from crosses among L. vulgare, L. maximum, and L. lacustre. It produces the classic daisy form: white ray florets surrounding a golden yellow disc, on sturdy stems above dark green, coarsely toothed foliage. Plants are clump-forming and typically reach 1 to 3 feet tall depending on cultivar.

Shasta daisy performs best in full sun on well-drained, moderately fertile soil. It tolerates some drought once established but benefits from consistent moisture during bloom. Deadheading extends the flowering period through summer. 'Becky' (3 feet, strong stems, late blooming) and 'Snowcap' (12 to 15 inches, compact) are widely grown cultivars. Division every 2 to 3 years maintains vigor. The species is generally short-lived as a perennial and may need periodic replacement.