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Plant care

Anthurium andraeanum 'Baron' (Baron anthurium) care

Anthurium andraeanum 'Baron'

Also called Baron anthurium.

RHS H1bUSDA 10-12Toxic to petsIndoor Around 45-60 cm tall and 35-45 cm wide indoors.

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

Coarse, free-draining aroid mix

Humidity

60-80%

Temp

18-29°C

Pet safety

Toxic to pets

Mature size

Around 45-60 cm tall and 35-45 cm wide indoors.

Care at a glance

Light

Bright but filtered. Anthurium andraeanum 'Baron' burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Provide bright, filtered light for steady flowering, such as an east window or set back from brighter glass. Direct sun burns leaves and spathes, while shade reduces blooms and weakens growth. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering anthurium andraeanum 'baron': when the top 2-3 cm of mix is dry, roughly every 5-7 days in growth. 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 thoroughly, let it drain fully, then wait for the surface to dry. The thick roots dislike sitting wet, so empty any saucer and water less often through winter.

Soil and pot

Anthurium andraeanum 'Baron' grows best in coarse, free-draining aroid mix. Use orchid bark, perlite and coco coir or peat with charcoal for an open, well-aerated medium. Dense potting soil holds excess water and risks rotting the roots. 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 'Baron' sits happiest at around 60-80% humidity and 18-29°C (65-84°F). Humid air keeps leaf tips green and prolongs spathe life. A pebble tray, humidifier or grouping with other plants offsets dry indoor air. 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 'baron' sparingly. Feed every 4-6 weeks in spring and summer with a half-strength balanced houseplant fertiliser, or a higher-phosphorus bloom feed to maximise spathes. Cut back in autumn and winter and flush the pot occasionally to clear fertiliser salts. 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 'baron' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Yellow lower leavesTypically overwatering and poor drainage; let the mix dry more between waterings and check the pot drains freely.
  • Brown crispy tipsLow humidity or salt build-up; raise humidity and switch to filtered or rainwater, flushing the pot periodically.
  • Few or small spathesToo little light or over-feeding with nitrogen; increase indirect light and use a phosphorus-rich bloom feed.
  • Sticky honeydew and pestsAphids, mealybugs or scale can appear; wipe leaves, isolate the plant and treat with insecticidal soap or neem.

Propagation

Divide the clump at repotting, keeping roots with each offset, or root stem cuttings bearing a node and aerial root. Pot up into fresh airy aroid mix and keep warm and humid until established. 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 'Baron' is toxic to pets. ASPCA lists Anthurium (flamingo flower) as toxic to cats and dogs. Insoluble calcium oxalate crystals cause oral irritation, severe drooling, pawing at the mouth, vomiting and difficulty swallowing when chewed. Keep well away from pets. 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 'Baron' care — frequently asked questions

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

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

How much light does anthurium andraeanum 'baron' need?

Anthurium andraeanum 'Baron' grows best in bright indirect light (just back from a sunny window). Provide bright, filtered light for steady flowering, such as an east window or set back from brighter glass. Direct sun burns leaves and spathes, while shade reduces blooms and weakens growth.

How often should I water anthurium andraeanum 'baron'?

Water anthurium andraeanum 'baron' when the top 2-3 cm of mix is dry, roughly every 5-7 days in growth. Water thoroughly, let it drain fully, then wait for the surface to dry. The thick roots dislike sitting wet, so empty any saucer and water less often through winter. 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 'baron' toxic to cats and dogs?

Anthurium andraeanum 'Baron' is toxic to pets. ASPCA lists Anthurium (flamingo flower) as toxic to cats and dogs. Insoluble calcium oxalate crystals cause oral irritation, severe drooling, pawing at the mouth, vomiting and difficulty swallowing when chewed. Keep well away from pets.

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

Anthurium andraeanum 'Baron' is rated for USDA zone 10-12 (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 'Baron' deep-dive guides

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

Featured in these plant shortlists

Anthurium andraeanum 'Baron' qualifies for 3 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

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