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Plant care

Palinha's Rock Rose (Sintra rock rose) care

Cistus palhinhae

Also called Palinha's rock rose, Sintra rock rose.

RHS H3USDA 9-10Mildly toxic to petsIndoor 1–1.5 m tall by 1–1.5 m wide (3–5 ft × 3–5 ft).

Watering rhythm

Direct sun (at least 4-6 hours)

Low — drought-tolerant once established

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Light

Direct sun (at least 4-6 hours)

Soil

Poor, dry, acidic to neutral, sandy and sharply drained

Humidity

Low to moderate (35–60% RH)

Temp

-3 to 30°C

Pet safety

Mildly toxic to pets

Mature size

1–1.5 m tall by 1–1.5 m wide (3–5 ft × 3–5 ft).

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Full sun is essential; this coastal Portuguese species is naturally exposed to high light levels and will not flower adequately in shade. If your only bright window faces south, that's perfect for palinha's rock rose — same window any aroid would fry on.

Watering

Watering palinha's rock rose: low — drought-tolerant once established. 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. Water during establishment in the first season only; the sandy coastal habitat of its native Portugal means it is finely tuned to dry conditions and suffers in waterlogged soil.

Soil and pot

Palinha's Rock Rose grows best in poor, dry, acidic to neutral, sandy and sharply drained. Unlike many Cistus species, C. palhinhae prefers slightly acidic, sandy soils (pH 5.5–7.0) reflecting its coastal Portuguese habitat; avoid chalk or heavy clay. 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

Palinha's Rock Rose sits happiest at around Low to moderate (35–60% RH) humidity and -3 to 30°C (27 to 86°F). The Atlantic coastal climate of its native range brings moderate humidity but strong winds that prevent moisture build-up; in sheltered, humid gardens ensure good air circulation. 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 palinha's rock rose sparingly. No fertiliser required; feed only sparingly with a low-phosphorus, low-nitrogen product in early spring in very poor growing media to avoid rank, disease-prone growth. 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 palinha's rock rose in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Cold, wet winters causing dieback — One of the less frost-hardy Cistus species; cold, wet conditions combined with temperatures below -3°C (27°F) can cause severe dieback or kill the plant. Plant in a sheltered spot, against a warm wall if possible, and ensure perfect drainage.
  • Resin residue on tools and clothing — The sticky labdanoid resin fouls pruning tools and stains fabric; clean tools with white spirit or isopropyl alcohol immediately after any pruning work.

Propagation

Semi-ripe cuttings taken in late summer root well in a gritty, free-draining medium in a frost-free cold frame or cool greenhouse; seed is occasionally available from specialist suppliers and should be sown in spring with light scarification. 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

Palinha's Rock Rose is mildly toxic to pets. Cistus palhinhae is not listed on the ASPCA Toxic and Non-Toxic Plants database. The plant produces labdanoid resinous compounds (labdanum); no confirmed acute toxicity to dogs or cats has been reported, but these resins can cause skin and mucous membrane irritation. As explicit non-toxic confirmation is absent, a precautionary mildly-toxic classification is applied. 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.

Palinha's Rock Rose care — frequently asked questions

What is the common name for Cistus palhinhae?

Cistus palhinhae is most commonly called Palinha's Rock Rose, but it is also known as Palinha's rock rose, Sintra rock rose. The names refer to the same species, so care instructions for Palinha's Rock Rose apply identically to anything sold as Sintra rock rose.

How much light does palinha's rock rose need?

Palinha's Rock Rose grows best in direct sun (at least 4-6 hours). Full sun is essential; this coastal Portuguese species is naturally exposed to high light levels and will not flower adequately in shade.

How often should I water palinha's rock rose?

Water palinha's rock rose low — drought-tolerant once established. Water during establishment in the first season only; the sandy coastal habitat of its native Portugal means it is finely tuned to dry conditions and suffers in waterlogged soil. 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 palinha's rock rose toxic to cats and dogs?

Palinha's Rock Rose is mildly toxic to pets. Cistus palhinhae is not listed on the ASPCA Toxic and Non-Toxic Plants database. The plant produces labdanoid resinous compounds (labdanum); no confirmed acute toxicity to dogs or cats has been reported, but these resins can cause skin and mucous membrane irritation. As explicit non-toxic confirmation is absent, a precautionary mildly-toxic classification is applied.

What USDA hardiness zone does palinha's rock rose grow in?

Palinha's Rock Rose is rated for USDA zone 9-10 and RHS hardiness H3. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Palinha's Rock Rose deep-dive guides

Every aspect of palinha's rock rose care, each with its own calibrated guide:

Featured in these plant shortlists

Palinha's Rock Rose qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Palinha's Rock Rose is also commonly called Palinha's rock rose or Sintra rock rose.