Becky Shasta daisy (Shasta daisy 'Becky') care

Light

Becky Shasta daisy needs sun on the leaves, not just bright ambient room light. Needs full sun (6+ hours daily) for the strongest self-supporting stems. Insufficient light causes lax, floppy growth even in this notably robust cultivar. Site in an open, sunny position. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water becky shasta daisy every 5–7 days in the growing season; less in cool or wet weather. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Keep soil evenly moist, especially during establishment and summer heat. Tolerates brief drought once established but leaf margins may brown and blooming suffers. Avoid waterlogged conditions which promote crown rot.

Soil and pot

Becky Shasta daisy grows best in moist, well-drained loam; slightly acidic to neutral ph 5.8–6.8. Performs best in moderately fertile, humus-amended soil with consistent moisture. Incorporate compost at planting to improve moisture retention. Good drainage is essential; standing water in winter causes crown losses. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Becky Shasta daisy sits happiest at around 40–70% humidity and -26 to 32°C (-15 to 90°F). Tolerates typical outdoor garden humidity. Ensure good air movement to reduce the risk of powdery mildew and foliar fungal diseases, which this tall, dense cultivar can be susceptible to. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed becky shasta daisy sparingly. Apply a balanced slow-release granular fertiliser (10-10-10) in early spring. A light balanced liquid feed after the first main flush of flowers in midsummer can prolong reblooming into early autumn. Avoid excessive nitrogen. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on becky shasta daisy in the Growli community. Each is annotated with the most common cause so you know where to start.

• Powdery mildew — White fungal coating on upper leaf surfaces in warm, dry summers with low air circulation. Space plants 45–60 cm apart, water at the base rather than overhead, and remove and dispose of affected leaves promptly.
• Crown rot in wet winters — Poorly drained soils and heavy clay cause crown losses during winter wet. Improve drainage before planting, raise beds if necessary, and avoid mulching directly over the crown.
• Clump decline — Even this vigorous cultivar loses vigour after three to four years as the centre dies out. Regular spring division keeps plants productive and maintains the strongly upright, self-supporting habit.

Propagation

Divide established clumps every three to four years in early spring or early autumn, replanting vigorous outer sections at the same depth. Take basal stem cuttings (8–10 cm) in spring. Do not grow from seed — seedlings will not come true to the 'Becky' cultivar. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Becky Shasta daisy is mildly toxic to pets. As a Leucanthemum cultivar, 'Becky' carries the same toxicity profile as the species. The ASPCA lists daisies in the Asteraceae/Chrysanthemum family as toxic to dogs and cats, with sesquiterpene lactones and pyrethrins causing vomiting, diarrhoea, and potential skin irritation. Symptoms are generally mild. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Becky Shasta daisy deep-dive guides

Every aspect of becky shasta daisy care, each with its own calibrated guide:

• Becky Shasta daisy watering schedule
• Becky Shasta daisy light requirements
• Best soil mix for becky shasta daisy
• Becky Shasta daisy fertilizing guide
• When to repot becky shasta daisy
• How to propagate becky shasta daisy
• Becky Shasta daisy growth rate & size
• Becky Shasta daisy cold hardiness
• Becky Shasta daisy temperature & humidity
• Is becky shasta daisy toxic to cats & dogs?
• Is becky shasta daisy toxic to cats?
• Is becky shasta daisy toxic to dogs?
• Getting becky shasta daisy to bloom

Featured in these plant shortlists

Becky Shasta daisy qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Becky Shasta daisy is also commonly called Becky Shasta daisy or Shasta daisy 'Becky'.

• Leucanthemum × superbum 'Alaska' care — light, water and common problems
• Leucanthemum × superbum 'Snowcap' care — light, water and common problems
• Leucanthemum × superbum 'Silver Princess' care — light, water and common problems
• All 6887 plant care guides in the Growli library