Amazing Daisies® Marshmallow™ Shasta Daisy

Marshmallow Shasta daisy forms a compact upright mound covered with large, fully double, bright white flowers. The 3.5-inch blooms appear in spring and summer, with the breeder listing summer as the main bloom time. Its modest size suits sunny borders, containers, and mass plantings, and the flowers attract bees and butterflies. See the [Proven Winners plant profile](https://www.provenwinners.com/plants/leucanthemum/amazing-daisies-marshmallow-shasta-daisy-leucanthemum-superbum) for its 18–20-inch height, 20–22-inch spread, and hardiness in USDA zones 5–9. ## Growing Conditions Plant in full sun in average to fertile soil. Good drainage is important for winter survival, and afternoon shade can help in warmer climates. Use the [University of Illinois Extension Shasta daisy guide](https://web.extension.illinois.edu/hortanswers/plantdetail.cfm?PlantID=733&PlantTypeID=2) for additional species-level guidance on winter drainage and growing conditions. ## Maintenance Water during establishment and during extended dry periods, allowing the soil to drain between waterings. Remove spent flowers to keep the clump tidy and encourage continued bloom. Cut back old stems when flowering ends.