Plant care
Dyer's Ice Plant (Red Ice Plant) care
Delosperma dyeri
Also called Red Ice Plant, Hardy Ice Plant.
Watering rhythm
10-14days
When the soil is completely dry, roughly every 10-14 days in growing season; reduce to monthly or less in winter
Light
Direct sun (at least 4-6 hours)
Soil
Free-draining cactus or succulent mix with added grit
Humidity
20-40%
Temp
5-30°C
Pet safety
Pet-safe
Mature size
5-10 cm tall
Care at a glance
Light
Dyer's Ice Plant needs sun on the leaves, not just bright ambient room light. Requires at least 6 hours of direct sunlight daily. A south- or west-facing windowsill is ideal indoors. Insufficient light causes weak, etiolated growth and reduced flowering. 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 dyer's ice plant when the soil is completely dry, roughly every 10-14 days in growing season; reduce to monthly or less in winter. Succulent-style plants store water in stem and leaf tissue — they'd rather be slightly thirsty than slightly soggy, and the most common way to kill one is to water it on a fixed weekly calendar instead of by feel. Highly drought-tolerant once established. Allow soil to dry out fully between waterings. Overwatering is the primary cause of rot. In winter, water very sparingly — the plant enters semi-dormancy.
Soil and pot
Dyer's Ice Plant grows best in free-draining cactus or succulent mix with added grit. Mix standard cactus compost with up to 50% coarse horticultural grit or perlite to ensure rapid drainage. Avoid moisture-retaining peat-heavy mixes. Neutral to slightly alkaline pH (6.5-7.5) is ideal. 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
Dyer's Ice Plant sits happiest at around 20-40% humidity and 5-30°C (41-86°F). Prefers dry air typical of succulent environments. Standard household humidity is acceptable. Avoid placing near humidifiers or in damp bathrooms. If you keep the room above 5 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 dyer's ice plant sparingly. Feed monthly during spring and summer with a dilute, low-nitrogen cactus or succulent fertiliser (quarter-strength). Do not fertilise in autumn or winter when growth slows. 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 dyer's ice plant in the Growli community. Each is annotated with the most common cause so you know where to start.
- Root rot — Almost always caused by overwatering or poorly draining soil. Allow soil to dry completely between waterings and ensure drainage holes are unobstructed.
- Etiolation — Stretched, pale growth indicates insufficient light. Move to a sunnier position or supplement with a grow light during short winter days.
- Aphids — Soft new growth may attract aphid colonies. Treat with a strong water spray or insecticidal soap, avoiding oil-based sprays in direct sun.
- Failure to flower — Most commonly caused by low light or over-fertilising with nitrogen. Ensure full sun and switch to a low-nitrogen feed.
- Winter dieback — Some top growth may die back in cold, wet winters. Leave the crown intact; new growth emerges from the base in spring.
Companion plants
Dyer's Ice Plant pairs well with Delosperma cooperi, Sedum spurium, Sempervivum tectorum, and Festuca glauca. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.
Propagation
Take 5-7 cm stem cuttings in late spring or early summer, allow cut ends to callous for 24-48 hours, then press into dry cactus mix. Division of established clumps in spring is also reliable. 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
Dyer's Ice Plant is pet-safe. Delosperma dyeri is not individually listed by the ASPCA, but the genus Delosperma (Aizoaceae) carries no known toxic-family signals and is generally regarded as non-toxic to cats and dogs. No bufadienolides, oxalates, or alkaloids of concern have been reported for this genus. 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.
Dyer's Ice Plant care — frequently asked questions
What is the common name for Delosperma dyeri?
Delosperma dyeri is most commonly called Dyer's Ice Plant, but it is also known as Red Ice Plant, Hardy Ice Plant. The names refer to the same species, so care instructions for Dyer's Ice Plant apply identically to anything sold as Red Ice Plant.
How much light does dyer's ice plant need?
Dyer's Ice Plant grows best in direct sun (at least 4-6 hours). Requires at least 6 hours of direct sunlight daily. A south- or west-facing windowsill is ideal indoors. Insufficient light causes weak, etiolated growth and reduced flowering.
How often should I water dyer's ice plant?
Water dyer's ice plant when the soil is completely dry, roughly every 10-14 days in growing season; reduce to monthly or less in winter. Highly drought-tolerant once established. Allow soil to dry out fully between waterings. Overwatering is the primary cause of rot. In winter, water very sparingly — the plant enters semi-dormancy. 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 dyer's ice plant toxic to cats and dogs?
Dyer's Ice Plant is pet-safe. Delosperma dyeri is not individually listed by the ASPCA, but the genus Delosperma (Aizoaceae) carries no known toxic-family signals and is generally regarded as non-toxic to cats and dogs. No bufadienolides, oxalates, or alkaloids of concern have been reported for this genus.
What USDA hardiness zone does dyer's ice plant grow in?
Dyer's Ice Plant is rated for USDA zone 6-9 and RHS hardiness H4. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Dyer's Ice Plant deep-dive guides
Every aspect of dyer's ice plant care, each with its own calibrated guide:
- Common dyer's ice plant problems & fixes
- Dyer's Ice Plant watering schedule
- Dyer's Ice Plant light requirements
- Best soil mix for dyer's ice plant
- Dyer's Ice Plant fertilizing guide
- When to repot dyer's ice plant
- How to propagate dyer's ice plant
- How to prune dyer's ice plant
- What's eating my dyer's ice plant?
- Dyer's Ice Plant growth rate & size
- Dyer's Ice Plant cold hardiness
- Dyer's Ice Plant temperature & humidity
- Is dyer's ice plant toxic to cats & dogs?
- Is dyer's ice plant toxic to cats?
- Is dyer's ice plant toxic to dogs?
- All 15 Delosperma varieties
Featured in these plant shortlists
Dyer's Ice Plant qualifies for 12 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
- Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
- Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
- Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
- 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 pet-safe succulents — Succulents the ASPCA lists as non-toxic to cats and dogs — low-water greenery that is also safe around a curious pet.
- 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.
- 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.
- Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
- Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
- Best small pet-safe plants — Compact, tabletop houseplants that are also ASPCA non-toxic to cats and dogs — safe greenery for a desk or shelf.
- Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Dyer's Ice Plant is also commonly called Red Ice Plant or Hardy Ice Plant.