Growli

Plant care

Pink Ice Plant (Delta Dew Plant) care

Oscularia deltoides

Also called Pink Ice Plant, Delta Dew Plant, Deltoid-Leaved Dewplant.

RHS H2USDA 9–11Mildly toxic to petsIndoor 20–30 cm (8–12 in) tall

Watering rhythm

2-3weeks

Weekly in spring and summer growing season; every 2–3 weeks in autumn; rarely in winter

Light

Direct sun (at least 4-6 hours)

Soil

Sandy, free-draining succulent or Mediterranean mix

Humidity

15–45%

Temp

5–35°C

Pet safety

Mildly toxic to pets

Mature size

20–30 cm (8–12 in) tall

Care at a glance

Light

Pink Ice Plant needs sun on the leaves, not just bright ambient room light. Full sun is required for best flowering — minimum 6 hours of direct sunlight daily. In full sun the foliage takes on attractive reddish tinges. In shade it grows leggy with very few flowers. An ideal candidate for sunny, south-facing beds and windowsills. 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 pink ice plant weekly in spring and summer growing season; every 2–3 weeks in autumn; rarely in winter. 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. Drought-tolerant once established but benefits from regular watering during the growing and flowering season. Allow the top half of the soil to dry between waterings. Reduce sharply in winter when the plant is semi-dormant. Avoid waterlogging at all times.

Soil and pot

Pink Ice Plant grows best in sandy, free-draining succulent or mediterranean mix. Thrives in lean, gritty, fast-draining soil. A standard cactus/succulent mix with added coarse sand works well in pots. In the ground, improve heavy soil with horticultural grit. Fertile or moisture-retentive soils encourage lush foliage at the expense of flowers. 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

Pink Ice Plant sits happiest at around 15–45% humidity and 5–35°C (41–95°F). Prefers low to moderate humidity typical of Mediterranean and South African coastal conditions. Good air circulation is important. High humidity combined with wet soil can cause fungal stem rot; ensure good ventilation indoors. If you keep the room above 5–35°C 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 pink ice plant sparingly. Apply a diluted low-nitrogen, high-potassium fertiliser (e.g. tomato feed diluted to half strength) once monthly during the flowering period (spring to early summer). Avoid high-nitrogen feeds which suppress flowering. Do not feed in winter. 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 pink ice plant in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Failure to flowerUsually caused by insufficient direct sunlight or over-fertilising with nitrogen. Move to the sunniest available position and switch to a high-potassium feed. Flowers open only in sunlight and close at night, so shaded plants appear not to bloom.
  • Stem rot at the baseOverwatering in winter or cool, damp conditions causes the woody stems to blacken and rot at the base. Cut back to healthy tissue, allow to dry, and treat with a fungicide. Improve drainage and reduce watering frequency.
  • Aphids on flower budsAphids cluster on new growth and flower stems in spring. Blast off with a strong jet of water or treat with insecticidal soap spray. Natural predators (ladybirds/ladybugs) help control populations outdoors.

Propagation

Stem cuttings root very easily from spring to early autumn. Take 7–10 cm (3–4 in) cuttings, strip lower leaves, allow to callous for 1–2 days, and push into barely moist gritty compost. Roots form in 2–3 weeks. Can also be grown from seed sown in spring. 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

Pink Ice Plant is mildly toxic to pets. Oscularia deltoides (family Aizoaceae) is not specifically listed by ASPCA. As a member of the ice plant family it is generally considered mildly toxic if ingested in quantity, potentially causing mild gastrointestinal upset. Keep away from pets and children as a precaution; consult a vet if ingestion occurs. 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.

Pink Ice Plant care — frequently asked questions

What is the common name for Oscularia deltoides?

Oscularia deltoides is most commonly called Pink Ice Plant, but it is also known as Pink Ice Plant, Delta Dew Plant, Deltoid-Leaved Dewplant. The names refer to the same species, so care instructions for Pink Ice Plant apply identically to anything sold as Delta Dew Plant.

How much light does pink ice plant need?

Pink Ice Plant grows best in direct sun (at least 4-6 hours). Full sun is required for best flowering — minimum 6 hours of direct sunlight daily. In full sun the foliage takes on attractive reddish tinges. In shade it grows leggy with very few flowers. An ideal candidate for sunny, south-facing beds and windowsills.

How often should I water pink ice plant?

Water pink ice plant weekly in spring and summer growing season; every 2–3 weeks in autumn; rarely in winter. Drought-tolerant once established but benefits from regular watering during the growing and flowering season. Allow the top half of the soil to dry between waterings. Reduce sharply in winter when the plant is semi-dormant. Avoid waterlogging at all times. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is pink ice plant toxic to cats and dogs?

Pink Ice Plant is mildly toxic to pets. Oscularia deltoides (family Aizoaceae) is not specifically listed by ASPCA. As a member of the ice plant family it is generally considered mildly toxic if ingested in quantity, potentially causing mild gastrointestinal upset. Keep away from pets and children as a precaution; consult a vet if ingestion occurs.

What USDA hardiness zone does pink ice plant grow in?

Pink Ice Plant is rated for USDA zone 9–11 and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Pink Ice Plant deep-dive guides

Every aspect of pink ice plant care, each with its own calibrated guide:

Featured in these plant shortlists

Pink Ice Plant qualifies for 8 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Pink Ice Plant is also known as Pink Ice Plant, Delta Dew Plant, and Deltoid-Leaved Dewplant.