Leucanthemum × superbum 'Silver Princess' (Silver Princess Shasta daisy) care

Light

Most houseplants will scorch where leucanthemum × superbum 'silver princess' thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Full sun for at least 6 hours produces dense, free-flowering mounds. Light shade is tolerated but reduces flower count and softens the habit, especially in cooler regions. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for about once a week, when the top 3-4 cm of soil is dry for leucanthemum × superbum 'silver princess', but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Aim for steady, moderate moisture, roughly 2.5 cm per week including rain. Soak deeply rather than little-and-often, and water at the base to keep foliage dry. Established plants handle brief drought once their roots are down.

Soil and pot

Leucanthemum × superbum 'Silver Princess' grows best in well-drained, moderately fertile loam. Neutral to slightly alkaline, pH about 6.5-7.5. Free drainage over winter is critical, as soggy soil rots the crown. Lighten clay with grit and organic matter before planting. 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

Leucanthemum × superbum 'Silver Princess' sits happiest at around Ambient outdoor humidity and -29 to 30°C (-20 to 86°F). A hardy border perennial unconcerned with humidity. Prioritise open spacing and airflow over any reading, since stagnant moist air invites mildew and leaf spot. 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 leucanthemum × superbum 'silver princess' sparingly. Modest needs. Top-dress with compost or apply a balanced fertiliser in early spring, with an optional light feed after the first flush. Skip heavy nitrogen, which causes lax growth and fewer flowers on this compact selection. 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 leucanthemum × superbum 'silver princess' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Crown rot in wet soil — Poor winter drainage rots the crown. Plant in free-draining soil or raised ground, and avoid mulching directly over the crown.
• Powdery mildew — A white coating develops in humid, crowded plantings. Space generously, improve airflow and remove infected leaves to slow spread.
• Declining vigour — Compact dwarf daisies can exhaust themselves and need lifting and dividing every 2-3 years to keep flowering freely.
• Slugs and snails on new growth — Tender spring shoots are grazed by slugs and snails. Use barriers, traps or wildlife-safe controls early in the season.

Propagation

Propagate by division in spring or early autumn for the most reliable results; replant vigorous outer sections. Basal cuttings taken in spring root readily. Cultivars such as 'Silver Princess' do not come true from seed, so use vegetative methods to preserve the form. 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

Leucanthemum × superbum 'Silver Princess' is toxic to pets. The ASPCA classifies Chrysanthemum/daisy composites such as Shasta daisy as toxic to cats and dogs, due to sesquiterpene lactones and pyrethrins. Signs of ingestion include vomiting, diarrhoea, drooling, loss of coordination and skin irritation. Site away from pets that nibble plants. 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.

Leucanthemum × superbum 'Silver Princess' deep-dive guides

Every aspect of leucanthemum × superbum 'silver princess' care, each with its own calibrated guide:

• Leucanthemum × superbum 'Silver Princess' watering schedule
• Leucanthemum × superbum 'Silver Princess' light requirements
• Best soil mix for leucanthemum × superbum 'silver princess'
• Leucanthemum × superbum 'Silver Princess' fertilizing guide
• When to repot leucanthemum × superbum 'silver princess'
• How to propagate leucanthemum × superbum 'silver princess'
• Leucanthemum × superbum 'Silver Princess' growth rate & size
• Leucanthemum × superbum 'Silver Princess' cold hardiness
• Leucanthemum × superbum 'Silver Princess' temperature & humidity
• Is leucanthemum × superbum 'silver princess' toxic to cats & dogs?
• Is leucanthemum × superbum 'silver princess' toxic to cats?
• Is leucanthemum × superbum 'silver princess' toxic to dogs?
• Getting leucanthemum × superbum 'silver princess' to bloom

Featured in these plant shortlists

Leucanthemum × superbum 'Silver Princess' qualifies for 5 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.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• 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

Leucanthemum × superbum 'Silver Princess' is also commonly called Silver Princess Shasta daisy or Silberprinzesschen daisy.

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