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Lacy tree philodendron

Thaumatophyllum bipinnatifidum, Araceae

Sources last read 13 September 2026.

Middling It gives warning, with time to act.

Also called Cut-leaf Philodendron, fiddle-leaf philodendron, Heartleaf Philodendron, Horsehead Philodendron, panda plant, Split Leaf Philodendron and Tree Philodendron.

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Lacy tree philodendron is toxic

  • Toxic to cats. Toxic principle: Insoluble calcium oxalates. Clinical signs: Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting (not horses), difficulty swallowing. ASPCA
  • Toxic to dogs. Toxic principle: Insoluble calcium oxalates. Clinical signs: Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting (not horses), difficulty swallowing. ASPCA
  • Toxic to people. Harmful when eaten; irritates skin and eyes and can cause allergy. Use gloves and protective gear when handling it. RHS

What the sources say about its care

Sources file this plant under other names: Philodendron bipinnatifidum (RHS), Philodendron selloum (ASPCA). Citations below point at the name its source uses.

Light
Medium light 100–150 fc
Clemson Extension, filed as Philodendron selloum · read 13 September 2026
Partial shade
RHS, filed as Philodendron bipinnatifidum · read 13 September 2026
Water
Moist but well-drained
RHS, filed as Philodendron bipinnatifidum · read 13 September 2026
Humidity

No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.

ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%
Penn State Extension · read 13 September 2026
Temperature

How cold this tolerates, not what it prefers. No source read for this site publishes a preferred range for a plant indoors.

H2 — 1–5°C 1–5 °C
RHS · read 13 September 2026
Soil
Loam; pH Acid or Alkaline or Neutral
RHS · read 13 September 2026
Toxic to cats
Toxic
ASPCA, filed as Philodendron selloum · read 13 September 2026
Toxic to dogs
Toxic
ASPCA, filed as Philodendron selloum · read 13 September 2026
Harmful to people
Harmful when eaten; irritates skin and eyes and can cause allergy. Use gloves and protective gear when handling it.
RHS · read 13 September 2026

How it usually goes wrong

Edges of the leaf blades brown while the middle stays sound

Tips first on a lacy tree philodendron, then margins. Affected tissue is papery and slightly curled, and the damage stops rather than advancing once conditions change.

Penn State Extension notes that most indoor plants benefit from more humidity than a home heated in winter provides. The leaf edge, furthest from the veins, is where the shortfall shows.

Telling it apart: Whether the damage advances. Dry air marks a leaf and stops; rot keeps going.

Penn State ExtensionLacy tree philodendron brown leaf tips and edges: causes
Pale, undersized leaf blades at the tips of the stems

Older leaf blades on the lacy tree philodendron keep their colour while each new one comes in thinner, with a longer stretch of bare stem below it.

Placed darker than the medium light its source describes, the plant invests in length rather than leaf, because length is what finds a window.

Telling it apart: Spacing. A plant short of light stretches; one short of nitrogen keeps its spacing and only loses colour.

Clemson ExtensionLacy tree philodendron leaves turning yellow: causes
Yellowing that begins at the leaves nearest the soil

The lowest leaf blades of the lacy tree philodendron go yellow and translucent at the stalk and drop with a light pull, while the compost stays wet.

Its source describes soil that is moist but well-drained. Roots held below that are short of air, and roots short of air stop moving water, so the vine wilts in a wet pot.

Telling it apart: Whether new growth is affected too. Root damage shows up everywhere at once; ordinary leaf loss shows only in the oldest leaves.

RHSLacy tree philodendron leaves turning yellow: causes

Not sure which it is? Ask the diagnosis questions for Lacy tree philodendron.

Routine care

Watering
Salt buildup harms it, so flush the soil often, let rain fall on it, or water with distilled water. It may form aerial roots that take up water and nutrients.
NC State Extension, filed as Philodendron bipinnatifidum · read 13 September 2026
During growth, water moderately and feed monthly with a balanced liquid fertiliser. At other times water sparingly.
RHS · read 13 September 2026
Feeding
While growing, water moderately and feed monthly with a balanced liquid fertilizer.
RHS · read 13 September 2026
Propagation
In spring surface-sow seed at 19 to 24°C, or layer.
RHS · read 13 September 2026
Pruning
Pruning group 11, in spring.
RHS · read 13 September 2026
Pests and diseases
Can be troubled by banded greenhouse thrips.
NC State Extension, filed as Philodendron bipinnatifidum · read 13 September 2026
Glasshouse red spider mite and scale insects can attack it. Disease is uncommon.
RHS · read 13 September 2026

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About the plant

Philodendron bipinnatifidum, synonyms including Thaumatophyllum bipinnatifidum and Philodendron selloanum, is a plant in the genus Philodendron, in the family Araceae. The species is native to South America, namely to Brazil, Bolivia, Argentina, and Paraguay, but is also cultivated as a landscape plant in tropical, subtropical and warm temperate climates.

From Wikipedia, CC BY-SA 4.0 · read 13 September 2026

Native range
E. Bolivia to SE. & S. Brazil and NE. Argentina
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP, filed as Philodendron bipinnatifidum · read 13 September 2026
E. Bolivia to SE. & S. Brazil and NE. Argentina
NC State Extension, filed as Philodendron bipinnatifidum · read 13 September 2026
S America
RHS · read 13 September 2026
Climate
seasonally dry tropical
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP, filed as Philodendron bipinnatifidum · read 13 September 2026
Growth form
scrambling shrub
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP, filed as Philodendron bipinnatifidum · read 13 September 2026
Perennial, Shrub; habit ascending, erect
NC State Extension, filed as Philodendron bipinnatifidum · read 13 September 2026
Bushy (evergreen)
RHS · read 13 September 2026
Size
Height 48–120 in; width 72–120 in
NC State Extension, filed as Philodendron bipinnatifidum · read 13 September 2026
Height 2.5-4 metres; spread 2.5-4 metres after 10–20 years
RHS · read 13 September 2026
Flowering
Flowers purple/lavender, red/burgundy, white
NC State Extension, filed as Philodendron bipinnatifidum · read 13 September 2026
Flowers cream in summer; purple in summer
RHS · read 13 September 2026

Common problems with Lacy tree philodendron

More of the Araceae family

Plants with similar care

Sources

What this does not cover

The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.

Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.

If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.