Leucanthemum (Shasta Daisy) Care Guide

Overview

Leucanthemum × superbum, commonly called Shasta Daisy, produces cheerful white daisy flowers with bright yellow centers from early to midsummer. The variety 'Becky' is one of the most vigorous and heat-tolerant Shastas available — reaching 3–4 feet with large, strong-stemmed flowers that stand up to summer storms. An American garden classic and one of the best perennials for cut flowers.

Sun & Exposure

• Ideal: Full sun (6+ hours daily)
• Tolerated: Light afternoon shade — plants may be slightly taller
• 'Becky' is notably heat tolerant for a Shasta Daisy

Watering

Prefers moderate, consistent moisture.

• Water regularly, especially during the first season and summer blooming period
• Allow the top inch of soil to dry between waterings
• Drought tolerant once established but performs better with consistent moisture
• Avoid waterlogged soil

Soil & Planting

• Average, well-draining soil
• Slightly acidic to neutral pH (6.0–7.0)
• Plant in spring or fall; space 18–24 inches apart
• Divide every 2–3 years when the center of the clump dies out

Fertilizing

• Apply a balanced slow-release fertilizer in early spring
• A light liquid feed in early summer supports the bloom season

Pruning & Deadheading

• Deadhead spent blooms to extend flowering and prevent excessive self-seeding
• After the main flush, cut stems back to basal foliage — may trigger a second flush in late summer
• Cut to the ground in late fall

Winter Care

Hardy in zones 4–9. Very reliable in cold climates. In warmer zones (8–9), may go semi-evergreen. 'Becky' is notably more heat and humidity tolerant than older Shasta varieties.

Common Issues

Tips

• One of the longest-lasting cut flowers; harvest when fully open
• Self-seeds moderately — deadhead if unwanted seedlings are a concern
• Excellent mid-border plant; pairs beautifully with Delphinium, Salvia, and Echinacea
• 'Becky' is award-winning and considered the gold standard for hot-summer gardens