Growli

Plant care

Philodendron Patriciae (Patriciae) care

Philodendron patriciae

Also called Patriciae, Patricia Philodendron.

RHS H1bUSDA 10-12Toxic to petsIndoor Climbs to 1.5-2 m indoors on support

Watering rhythm

7-10days

When the top 2-3 cm of soil is dry, roughly every 7-10 days

Light

Bright indirect light (just back from a sunny window)

Soil

Very airy, fast-draining aroid mix

Humidity

60-85%

Temp

20-29°C

Pet safety

Toxic to pets

Mature size

Climbs to 1.5-2 m indoors on support

Care at a glance

Light

Philodendron Patriciae is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Bright, indirect light brings out the glossy, rippled texture and full leaf size. Avoid direct sun, which scorches the surface. Too little light yields small, dull leaves and weak growth. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water philodendron patriciae when the top 2-3 cm of soil is dry, roughly every 7-10 days. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Keep evenly moist during active growth; the large leaves transpire heavily. Let the top few centimetres dry between waterings and ensure fast drainage to avoid the root rot it is prone to.

Soil and pot

Philodendron Patriciae grows best in very airy, fast-draining aroid mix. Use a chunky blend of orchid bark, perlite, charcoal and coco coir. Excellent aeration is critical; a moss pole supports the climbing habit and encourages the long, pendant mature leaves. 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 Patriciae sits happiest at around 60-85% humidity and 20-29°C (68-85°F). Requires consistently high humidity to thrive; below 60% leaf edges brown and growth stalls. A grow cabinet, greenhouse or strong humidifier is strongly recommended for this species. If you keep the room above 20 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 patriciae sparingly. Feed every 2-4 weeks in spring and summer with a balanced liquid fertiliser at half strength to fuel its large-leaved growth. Reduce in autumn and pause in winter. Flush the soil occasionally to prevent salt buildup near the sensitive roots. 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 patriciae in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Brown, crisping leaf edgesLow humidity is the most common issue. Keep humidity above 60%, ideally in an enclosed space.
  • Root rotDense or soggy soil suffocates the roots. Use a very chunky, fast-draining mix and let the top dry between waterings.
  • Small, flat new leavesInsufficient light, humidity or no support. Provide bright indirect light, high humidity and a moss pole for full, rippled leaves.
  • Stalled growthCool temperatures slow this warmth-loving species. Keep it consistently above 20°C for steady growth.

Propagation

Propagate from stem cuttings with at least one node and an aerial root. Root in sphagnum moss in a humid, warm enclosure; this species can be slow and benefits from stable high humidity while establishing, often taking four to six 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 Patriciae is toxic to pets. Toxic to cats and dogs. The ASPCA lists Philodendron as toxic; like all Philodendron species it contains insoluble calcium oxalate crystals. Ingestion causes intense oral burning, drooling, vomiting, pawing at the mouth and difficulty swallowing. Keep 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 Patriciae care — frequently asked questions

What is the common name for Philodendron patriciae?

Philodendron patriciae is most commonly called Philodendron Patriciae, but it is also known as Patriciae, Patricia Philodendron. The names refer to the same species, so care instructions for Philodendron Patriciae apply identically to anything sold as Patriciae.

How much light does philodendron patriciae need?

Philodendron Patriciae grows best in bright indirect light (just back from a sunny window). Bright, indirect light brings out the glossy, rippled texture and full leaf size. Avoid direct sun, which scorches the surface. Too little light yields small, dull leaves and weak growth.

How often should I water philodendron patriciae?

Water philodendron patriciae when the top 2-3 cm of soil is dry, roughly every 7-10 days. Keep evenly moist during active growth; the large leaves transpire heavily. Let the top few centimetres dry between waterings and ensure fast drainage to avoid the root rot it is prone to. 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 patriciae toxic to cats and dogs?

Philodendron Patriciae is toxic to pets. Toxic to cats and dogs. The ASPCA lists Philodendron as toxic; like all Philodendron species it contains insoluble calcium oxalate crystals. Ingestion causes intense oral burning, drooling, vomiting, pawing at the mouth and difficulty swallowing. Keep out of reach of pets and children.

What USDA hardiness zone does philodendron patriciae grow in?

Philodendron Patriciae is rated for USDA zone 10-12 (grown indoors 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 Patriciae deep-dive guides

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

Featured in these plant shortlists

Philodendron Patriciae 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

Philodendron Patriciae is also commonly called Patriciae or Patricia Philodendron.