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Plant care

Philodendron Andreanum (Andreanum) care

Philodendron andreanum

Also called Andreanum, Black-Gold Velvet Philodendron.

RHS H1bUSDA 10-12Toxic to petsIndoor Indoors commonly 1-1.5 m (3-5 ft) tall on a pole

Watering rhythm

7-10days

When the top 2-3 cm (1 in) of mix is dry, roughly every 7-10 days

Light

Bright indirect light (just back from a sunny window)

Soil

Chunky, airy aroid mix

Humidity

60-80%

Temp

18-27°C

Pet safety

Toxic to pets

Mature size

Indoors commonly 1-1.5 m (3-5 ft) tall on a pole

Care at a glance

Light

In the wild philodendron andreanum 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 brings out the velvet texture and gold veining. Avoid direct sun, which scorches the matte surface and fades the contrast. An east-facing window or filtered position is ideal. 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 (1 in) of mix is dry, roughly every 7-10 days for philodendron andreanum, 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. Keep the chunky mix evenly moist but never soggy; the velvety roots dislike both drought and standing water. Water thoroughly, let the surface dry slightly, then repeat. Ease off in low light and winter to avoid rot.

Soil and pot

Philodendron Andreanum grows best in chunky, airy aroid mix. Use a very free-draining blend of orchid bark, perlite, coco coir and sphagnum. The fine velvet-leaved aroids resist root rot best in an open, aerated mix that holds some moisture without staying wet. 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

Philodendron Andreanum sits happiest at around 60-80% humidity and 18-27°C (65-80°F). High humidity is important for the velvety leaves and large new growth. Below about 50% the leaf edges brown and growth stalls. A humidifier, grouping, or a grow cabinet gives the most reliable, healthy foliage. 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 philodendron andreanum sparingly. Feed every 4-6 weeks in spring and summer with a balanced liquid houseplant fertiliser diluted to half strength to fuel the long velvet leaves. Pause in winter. Flush occasionally, as this velvety species is sensitive to salt buildup and tip burn. 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 philodendron andreanum in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Browning leaf edgesThe most common issue, driven by low humidity or salt buildup. Raise humidity above 60% and flush the pot with clean water to clear accumulated minerals.
  • Root rotA dense or overwatered mix rots the fine roots. Use a chunky, airy aroid blend and let the surface dry slightly between waterings.
  • Faded velvet and veinsToo much direct light bleaches the matte surface and gold veining. Provide bright indirect light only.
  • Small or stalled leavesLack of a climbing support, low humidity or cool temperatures keep leaves short. Stake on a moss pole, keep above 18°C and maintain high humidity.

Propagation

Propagate from stem cuttings just below a node, each with at least one node and ideally an aerial root. Root in damp sphagnum moss or a chunky aroid mix in a warm, very humid environment; velvet-leaved aroids root reliably but slowly, over several weeks. 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

Philodendron Andreanum is toxic to pets. Toxic to cats and dogs per the ASPCA, which lists Philodendron as toxic due to insoluble calcium oxalate crystals. Chewing causes intense oral burning and irritation, drooling, vomiting and difficulty swallowing. Keep this plant well out of reach of pets and children. 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.

Philodendron Andreanum care — frequently asked questions

What is the common name for Philodendron andreanum?

Philodendron andreanum is most commonly called Philodendron Andreanum, but it is also known as Andreanum, Black-Gold Velvet Philodendron. The names refer to the same species, so care instructions for Philodendron Andreanum apply identically to anything sold as Andreanum.

How much light does philodendron andreanum need?

Philodendron Andreanum grows best in bright indirect light (just back from a sunny window). Bright indirect light brings out the velvet texture and gold veining. Avoid direct sun, which scorches the matte surface and fades the contrast. An east-facing window or filtered position is ideal.

How often should I water philodendron andreanum?

Water philodendron andreanum when the top 2-3 cm (1 in) of mix is dry, roughly every 7-10 days. Keep the chunky mix evenly moist but never soggy; the velvety roots dislike both drought and standing water. Water thoroughly, let the surface dry slightly, then repeat. Ease off in low light and winter to avoid rot. 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 philodendron andreanum toxic to cats and dogs?

Philodendron Andreanum is toxic to pets. Toxic to cats and dogs per the ASPCA, which lists Philodendron as toxic due to insoluble calcium oxalate crystals. Chewing causes intense oral burning and irritation, drooling, vomiting and difficulty swallowing. Keep this plant well out of reach of pets and children.

What USDA hardiness zone does philodendron andreanum grow in?

Philodendron Andreanum 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.

Philodendron Andreanum deep-dive guides

Every aspect of philodendron andreanum care, each with its own calibrated guide:

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Philodendron Andreanum 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

Philodendron Andreanum is also commonly called Andreanum or Black-Gold Velvet Philodendron.