Portulaca grandiflora 'Sundial Mango' (Sundial Mango Portulaca) care

Light

Aim for at least 4-6 hours of direct sun on the leaves. Full, blazing sun, 6-8 hours daily. Flowers close in shade and on dull days; the more direct sun, the more blooms open. Ideal for hot, exposed spots. If your only bright window faces south, that's perfect for portulaca grandiflora 'sundial mango' — same window any aroid would fry on.

Watering

Watering portulaca grandiflora 'sundial mango': when the soil is dry several centimetres down, roughly every 7-10 days; less in cool spells. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. A succulent that stores water in its leaves and stems, it tolerates drought well. Water sparingly and let the soil dry thoroughly between drinks. Overwatering is the main killer.

Soil and pot

Portulaca grandiflora 'Sundial Mango' grows best in sharply drained, sandy or gritty, low-fertility soil. Thrives in poor, sandy, fast-draining ground; a cactus or succulent mix amended with grit suits containers. Rich, moisture-retentive soil causes leafy growth, fewer flowers and rot. 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

Portulaca grandiflora 'Sundial Mango' sits happiest at around 30-50% humidity and 21-32°C (70-90°F). Prefers dry, low-humidity air and dislikes muggy, damp conditions. Good airflow and dry foliage prevent fungal problems. If you keep the room above 21 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 portulaca grandiflora 'sundial mango' sparingly. Needs very little feed. An occasional dilute balanced liquid feed every 3-4 weeks in containers is plenty; in the ground it usually needs none. Too much nitrogen produces foliage at the expense of flowers. 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 portulaca grandiflora 'sundial mango' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Flowers won't open — Blooms only open in bright sun. Cloudy weather or a shaded position keeps them shut; relocate to the sunniest available spot.
• Stem and root rot — Caused by overwatering or heavy, wet soil. Plant in gritty, fast-draining mix and water only when thoroughly dry.
• Leggy, sparse growth — Too little light or overly rich soil produces weak, floppy stems. Move to full sun and use lean, poor soil.
• Aphids on new growth — Soft tip growth can attract aphids. Rinse off with water or treat with insecticidal soap; healthy, airy plants rarely suffer badly.

Propagation

Grows readily from seed sown on the soil surface (light aids germination) in warmth after frost, or from stem cuttings, which root easily given the succulent stems. Named doubles are best maintained from cuttings to preserve flower 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

Portulaca grandiflora 'Sundial Mango' is toxic to pets. ASPCA-grounded: Portulaca is listed by the ASPCA as toxic to cats, dogs and horses, the toxic principle being soluble calcium oxalates. Signs can include drooling, vomiting, weakness and depression; large ingestions risk kidney effects from soluble oxalates. Keep away from pets and grazing animals. 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.

Portulaca grandiflora 'Sundial Mango' deep-dive guides

Every aspect of portulaca grandiflora 'sundial mango' care, each with its own calibrated guide:

• Portulaca grandiflora 'Sundial Mango' watering schedule
• Portulaca grandiflora 'Sundial Mango' light requirements
• Best soil mix for portulaca grandiflora 'sundial mango'
• Portulaca grandiflora 'Sundial Mango' fertilizing guide
• When to repot portulaca grandiflora 'sundial mango'
• How to propagate portulaca grandiflora 'sundial mango'
• Portulaca grandiflora 'Sundial Mango' growth rate & size
• Portulaca grandiflora 'Sundial Mango' cold hardiness
• Portulaca grandiflora 'Sundial Mango' temperature & humidity
• Is portulaca grandiflora 'sundial mango' toxic to cats & dogs?
• Is portulaca grandiflora 'sundial mango' toxic to cats?
• Is portulaca grandiflora 'sundial mango' toxic to dogs?
• Getting portulaca grandiflora 'sundial mango' to bloom

Featured in these plant shortlists

Portulaca grandiflora 'Sundial Mango' qualifies for 6 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 succulents for beginners — The easiest succulents and cacti to keep alive — selected by documented growth habit, each with the light and watering it actually wants.
• Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Portulaca grandiflora 'Sundial Mango' is also commonly called Sundial Mango Portulaca or Mango Moss Rose.

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