Perennials
Leucanthemum × superbum 'Marshmallow'
Marshmallow Shasta daisy
Fully double white flowers form fluffy, rounded heads above a green mound. A distinctive daisy for sunny borders and bouquets. Grow in average to fertile soil; winter drainage is important.
At a glance
- Sun
- Full sun
- Mature size
- 18–20 in. tall × 20–22 in. wide
- Water
- Moderate; well drained
- Hardiness
- USDA zones 5–9
- Bloom
- Double white, 3½ in.; early–late summer.
Sizes & prices
- #1$19.99
Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.
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Resistance & tolerances
- Drought
- Water during extended dry spells to maintain flowering.
- Wet soil
- Avoid waterlogged crowns, especially in winter.
Pollinators & wildlife
- Attracts
- Bees, Butterflies
Growing & care
- Flowers
- Deadhead to extend bloom.
- Maintenance
- Remove faded flowers to encourage rebloom. Divide crowded clumps in spring or fall every 2–3 years; avoid wet winter soil.
Sources & photo credits
Photo: Amazing Daisies® 'Marshmallow' Shasta Daisy Leucanthemum superbum, Photo courtesy of Proven Winners · Authorized promotional use
Reviewed September 19, 2026. Growing conditions vary by location.