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Anthurium andraeanum 'Roxane' (Roxane anthurium) care

Anthurium andraeanum 'Roxane'

Also called Roxane anthurium.

RHS H1bUSDA 11-12Toxic to petsIndoor About 35-50 cm tall and 30-40 cm wide indoors as a potted andraeanum hybrid.

Watering rhythm

5-7days

When the top 2-3 cm of mix is dry, roughly every 5-7 days in growth

Light

Bright indirect light (just back from a sunny window)

Soil

Chunky, free-draining epiphytic aroid mix

Humidity

50-70%

Temp

18-29°C

Pet safety

Toxic to pets

Mature size

About 35-50 cm tall and 30-40 cm wide indoors as a potted andraeanum hybrid.

Care at a glance

Light

In the wild anthurium andraeanum 'roxane' grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Bright, indirect light keeps the spathe colour saturated and supports continuous flowering. Direct sun scorches the bracts and bleaches foliage; low light reduces blooms and stretches the plant. An east-facing or filtered bright spot suits it best. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for when the top 2-3 cm of mix is dry, roughly every 5-7 days in growth for anthurium andraeanum 'roxane', 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. Water thoroughly, let it drain, and allow the surface to dry before re-watering. The fleshy roots rot in soggy conditions, so never let the pot sit in water. Reduce watering in winter as growth and light decline.

Soil and pot

Anthurium andraeanum 'Roxane' grows best in chunky, free-draining epiphytic aroid mix. Use orchid bark, perlite, and coco coir with a little charcoal. The open structure suits its epiphytic roots, holding gentle moisture while draining freely; standard dense potting compost stays too wet and triggers 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

Anthurium andraeanum 'Roxane' sits happiest at around 50-70% humidity and 18-29°C (65-84°F). Prefers humidity above 50% for unblemished leaves and longer-lasting blooms. In dry air, leaf and spathe edges brown. Lift humidity with a pebble tray, humidifier, or by grouping plants; avoid misting directly onto the open spathes. If you keep the room above 18 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 anthurium andraeanum 'roxane' sparingly. Feed every 4-6 weeks in spring and summer with a balanced fertiliser at half strength, or a high-phosphorus bloom feed to sustain flowering. Cut back through autumn and winter. Flush the mix periodically to clear salts that would otherwise burn the root tips. 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 anthurium andraeanum 'roxane' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Brown spathe or leaf edgesLow humidity or hard-water salts. Increase humidity and water with filtered or rainwater; flush the pot to remove built-up salts.
  • Reduced floweringInsufficient light or too much nitrogen feed. Move to brighter indirect light and use a higher-phosphorus bloom fertiliser during active growth.
  • Yellow lower leavesUsually overwatering or a compacted mix. Let the top of the mix dry out between waterings and repot into a chunkier aroid blend.
  • Pale or washed-out colourAging blooms fade naturally, but a persistently dull display signals too little light raise the brightness of its position.

Propagation

Propagate by division at repotting: separate rooted offsets or side crowns, each with its own roots and growth point. Cuttings with aerial roots also establish in a humid, airy medium. As a named hybrid it will not come true from seed, so division is the dependable method. 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

Anthurium andraeanum 'Roxane' is toxic to pets. ASPCA classifies Anthurium as toxic to cats and dogs. It contains insoluble calcium oxalate crystals (raphides) that release on chewing, causing oral burning and irritation, drooling, vomiting, and difficulty swallowing. Keep out of reach of pets and children and wash hands after handling cut stems or sap. 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.

Anthurium andraeanum 'Roxane' care — frequently asked questions

What is the common name for Anthurium andraeanum 'Roxane'?

Anthurium andraeanum 'Roxane' is most commonly called Anthurium andraeanum 'Roxane', but it is also known as Roxane anthurium. The names refer to the same species, so care instructions for Anthurium andraeanum 'Roxane' apply identically to anything sold as Roxane anthurium.

How much light does anthurium andraeanum 'roxane' need?

Anthurium andraeanum 'Roxane' grows best in bright indirect light (just back from a sunny window). Bright, indirect light keeps the spathe colour saturated and supports continuous flowering. Direct sun scorches the bracts and bleaches foliage; low light reduces blooms and stretches the plant. An east-facing or filtered bright spot suits it best.

How often should I water anthurium andraeanum 'roxane'?

Water anthurium andraeanum 'roxane' when the top 2-3 cm of mix is dry, roughly every 5-7 days in growth. Water thoroughly, let it drain, and allow the surface to dry before re-watering. The fleshy roots rot in soggy conditions, so never let the pot sit in water. Reduce watering in winter as growth and light decline. 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 anthurium andraeanum 'roxane' toxic to cats and dogs?

Anthurium andraeanum 'Roxane' is toxic to pets. ASPCA classifies Anthurium as toxic to cats and dogs. It contains insoluble calcium oxalate crystals (raphides) that release on chewing, causing oral burning and irritation, drooling, vomiting, and difficulty swallowing. Keep out of reach of pets and children and wash hands after handling cut stems or sap.

What USDA hardiness zone does anthurium andraeanum 'roxane' grow in?

Anthurium andraeanum 'Roxane' is rated for USDA zone 11-12 (indoor in most US homes) and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Anthurium andraeanum 'Roxane' deep-dive guides

Every aspect of anthurium andraeanum 'roxane' care, each with its own calibrated guide:

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Anthurium andraeanum 'Roxane' qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Anthurium andraeanum 'Roxane' is also commonly called Roxane anthurium.