🌼 Becky Shasta Daisy

Leucanthemum x superbum 'Becky'
The tall white daisy: 3- to 4-foot stems of classic white daisies — the shasta that anchors a summer border.
Sun
Full sun
Time to bloom
Early summer to fall, repeat after deadheading
Spacing
18-24 inches apart
Soil pH
6.0-7.5, well-drained
Zones
Zones 5-9 (Florida: North and Central trial; see note)

What it looks like

Leucanthemum x (species) — A close up of a flower on a Leucanthemum x superbum en cultivar 'Becky', commonly known as a Shasta Daisy. Growing in New Hampshire.
Leucanthemum x, the species (no verified photo of ‘Becky Shasta Daisy’ itself exists). Photo: Captain-tucker, CC BY-SA 3.0.
Leucanthemum x (species) — Leucanthemum x superbum Becky 1zz
Leucanthemum x, the species (no verified photo of ‘Becky Shasta Daisy’ itself exists). Photo: Photo by David J. Stang, CC BY-SA 4.0.
Leucanthemum x (species) — Leucanthemum x superbum Becky 2zz
Leucanthemum x, the species (no verified photo of ‘Becky Shasta Daisy’ itself exists). Photo: Photo by David J. Stang, CC BY-SA 4.0.

Why this variety

Becky is the shasta daisy for gardeners who want a white daisy with backbone: sturdy, 3- to 4-foot stems topped by large, single, classic white daisies with yellow centers, blooming from early summer into fall and repeating after deadheading, on a plant that does not flop, does not need staking, and does not quit in heat the way older shastas do. It was selected for vigor and height, and it is the shasta to plant at the back of a sunny border, where its white flowers act as a foil for every other color in the garden.

The trade-off is that shasta daisies are short-lived perennials that want sun, drainage, and deadheading — not a plant-and-forget perennial. Deadhead spent blooms for rebloom, divide congested clumps every few years in spring or fall, and do not plant Becky in wet soil, where it rots. Give it those basics, and it will be the white anchor of the summer border for years; neglect it, and it will fade after a few seasons and need replacing.

If you are new to choosing between cultivars, the Varieties Matter guide explains why the name after the plant matters as much as the plant itself. Becky is a perfect example: it is not just a shasta daisy in the abstract, it is a shasta daisy with a specific job, a specific history, and specific strengths.

Florida honesty: shasta daisies are a North and Central Florida trial, not a South Florida perennial — they want sun, drainage, and cooler summers than South Florida offers, and Florida humidity plus wet soil shorten their life. In North Florida Becky performs as a long-blooming perennial; in Central Florida, give it sun, a raised bed or sharp drainage, deadhead for rebloom, and treat it as a warm-season perennial that may need replacing after a wet summer.

How to grow

Plant in spring or fall in full sun and well-drained soil — shasta daisies want sun, air, and room. Work worm castings into the bed at planting, mulch to hold moisture, and deadhead spent blooms for rebloom. Divide congested clumps every few years in spring or fall to keep them vigorous, and stake tall types in windy sites.

Set plants 18-24 inches apart in soil with a pH around 6.0-7.5. Work worm castings into the bed at planting and mulch to hold moisture. A well-fed shasta daisy plant rewards that care directly: steadier growth, better bloom, and a show that actually shows up.

Water & feeding

Keep soil evenly moist but never waterlogged — shasta daisies want steady moisture and good drainage, not swamp and not drought. Water at the soil line, mulch to hold moisture, and feed moderately: castings at planting plus a balanced organic feed in spring. Avoid overhead watering where mildew is a problem, and space for air.

Common problems

  • Powdery mildew in humid, crowded plantings — space for air, water at the soil line, and remove affected leaves.
  • Flopping tall types — stake Becky in windy sites, and do not overfeed, which makes soft growth.
  • Aphids on new growth — blast with water and encourage ladybugs; avoid broad-spectrum sprays.
  • Crown rot in wet soil — shastas want moist soil, not standing water; improve drainage and do not plant where rain ponds.
  • Short life — shastas are short-lived perennials; divide every few years and replant without mourning.

Harvest

Cut flowers for bouquets from early summer into fall, when daisies are fully open — shasta daisies last well in water and suit every summer arrangement. Deadhead spent blooms for rebloom, leave some seed heads for birds if you like a naturalized look, and divide congested clumps every few years in spring or fall.

Nerdy fact: Becky’s daisy is not one flower — it is hundreds: the white ‘petals’ are individual ray florets, and the yellow center is a dense cluster of tiny disc florets, each a complete flower in miniature. The daisy family, Asteraceae, is the largest plant family on earth, and the daisy head is its signature trick — a whole inflorescence pretending to be a single bloom.

Browse all plant & pest guides

Saving seeds

Becky is a selected variety, so seed saved from it won’t come true — divide congested clumps instead. The Saving seeds section of the Shasta Daisy guide covers seed for the straight species.