Syngonium
Syngonium podophyllum
A fast, forgiving aroid that changes shape as it matures: arrow-shaped juvenile leaves on a compact plant, then lobed leaves on a climbing stem once it finds something to climb. Both stages are normal, and a plant that has started to vine has not gone wrong.
- Position
- Bright, out of direct sun
- Water
- moderate demand
- Drainage
- Free-draining
- Grows to
- 100–180 cm × 40–90 cm
- Frost
- Frost tender
- Difficulty
- Straightforward
Described view
An arrow-shaped juvenile syngonium leaf beside a lobed mature leaf from a climbing stem
August
Nothing to do
No sowing, planting, harvesting or pruning window falls in August.
Syngonium’s year
Resolved for United Kingdom (general). Every window is stored against a climate event rather than a date, so a late frost pocket runs later than the band shows. What else August calls for.
| Activity | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prune | April. | May. | June. | |||||||||
| Take cuttings | May. | June. | July. |
Timing that travels
The band above resolves this plant's windows into months for one region. These are the windows themselves, stored against a climate event rather than a date — which is the form that survives being carried to a colder garden, a frost pocket, or next year.
Conditions it needs
- Light
- Partial shade, Dappled shade
- Frost
- Frost tender
- Grows best at
- 16–27 °C
- Soil
- Peat-free compost
- Soil pH
- 5.5–7
- Drainage
- Free-draining
- Water needs
- moderate
- Drought
- moderate tolerance
- Waterlogging
- poor tolerance
- Heat
- good tolerance
- Wind and exposure
- poor tolerance
Where these figures come from
- LightSourced guidancemoderate confidence
- Royal Horticultural Society: Syngonium — position
Checked 2026-08-13
- FrostSourced guidancehigh confidence
- Royal Horticultural Society: Syngonium — hardiness
Checked 2026-08-13
- Grows best atSourced guidancemoderate confidence
- Royal Horticultural Society: Syngonium — temperature
Checked 2026-08-13
- SoilSourced guidancemoderate confidence
- Royal Horticultural Society: Syngonium — soil
Checked 2026-08-13
- Soil pHSourced guidancemoderate confidence
- Plant Finder — Missouri Botanical Garden: Syngonium podophyllum — culture
Checked 2026-08-13
- DrainageSourced guidancemoderate confidence
- Royal Horticultural Society: Syngonium — soil
Checked 2026-08-13
- Water needsHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- DroughtHorticultural consensusmoderate confidence
It wilts dramatically and recovers within hours.
No external citation — see the evidence type above.
Checked 2026-08-13
- WaterloggingHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- HeatHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Wind and exposureHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
On your soil
Computed by comparing this plant's recorded requirements against each soil's recorded characteristics. A recorded horticultural fact overrides the comparison where GrowingHQ holds one.
| Soil | Verdict | Why |
|---|---|---|
| Heavy clay | Works, with one condition | Syngonium will crop on heavy clay, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse. |
| Sandy | Grows well here | Syngonium grows perfectly well on sandy without special measures, though it is not the soil it would choose. |
| Chalky and alkaline | Works, with one condition | Syngonium will crop on chalky and alkaline, but one thing has to be dealt with first. The soil is substantially too alkaline for it: it wants pH 5.5 to 7, and this soil sits around 7.8 to 8.5.The pH is the obstacle. Small shifts are achievable and slow; large ones are not. On chalky and alkaline the dependable answer is a container of the right compost rather than an attempt to change the ground. |
| Loam | Prefers this soil | Loam suits Syngonium as it stands: The pH suits it: it wants 5.5 to 7, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering. |
| Silty | Prefers this soil | Silty suits Syngonium as it stands: The pH suits it: it wants 5.5 to 7, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering. |
| Peaty and acid | Works, with one condition | Syngonium will crop on peaty and acid, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse. |
| Shallow over rock | Grows well here | Syngonium grows perfectly well on shallow over rock without special measures, though it is not the soil it would choose. |
| Made ground and urban soil | Works, with one condition | Syngonium will crop on made ground and urban soil, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse. |
Not sure which you have? Four hand tests will settle it.
Space and spacing
- Mature height
- 100–180 cm
- Mature spread
- 40–90 cm
- Rooting depth
- 20 cm
Where these figures come from
- Mature heightHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Mature spreadHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Rooting depthHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
In a container
- Minimum volume
- 2 litres or more
- Minimum depth
- 15 cm
Where the container figures come from
- Minimum volumeHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Minimum depthHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
Happy in a small pot. Pinch the growing tips to keep it bushy rather than trailing.
Where and how you can grow it
Each way of growing is assessed separately, and “not assessed” is a real answer rather than a gap we have filled in with a guess.
| Method | Suitability | What it needs |
|---|---|---|
| Indoor pot | Well suitedsourceSourced guidancemoderate confidence
Checked 2026-08-13 | |
| Container | Well suitedsourceSourced guidancemoderate confidence
Checked 2026-08-13 | Indoors, or outdoors in summer only |
| Windowsill | WorkablesourceSourced guidancemoderate confidence
Checked 2026-08-13 | |
| Hydroponics | WorkablesourceSourced guidancemoderate confidence
Checked 2026-08-13 | |
| Open ground | Not suitablesourceSourced guidancemoderate confidence
Checked 2026-08-13 | Tender: will not survive a British winter outdoors. |
Growing it
- PruningPinch the growing tips regularly if you want a mound rather than a vine. Left alone it will climb or trail, and the leaves change shape as it does.
- PropagationCuttings need a node — the small bump where a leaf joins the stem. A length of stem with leaves but no node will sit in water indefinitely and never root.
- WateringWater thoroughly until it runs from the base, then empty the saucer — syngonium wilts dramatically and recovers within hours, which makes it an unusually easy plant to read and an easy one to overcorrect. From October, expect to water perhaps half as often as in July: the plant slows markedly as the light goes, and compost that stayed damp for four days in summer can stay damp for ten in a cool winter room. Yellowing lower leaves in winter is nearly always too much water rather than too little.
- FeedingA balanced liquid feed monthly from spring to early autumn, at half the strength on the bottle. Stop from October. Syngonium is vigorous enough that the usual problem is a plant outgrowing its position rather than a hungry one, and the arrow-shaped juvenile leaves people buy it for become larger and lobed as it climbs — feeding accelerates that change rather than preventing it.
Where this guidance comes from
- PruningSourced guidancehigh confidence
- Royal Horticultural Society: Syngonium — pruning
Checked 2026-08-13
- PropagationSourced guidancehigh confidence
- Royal Horticultural Society: Syngonium — propagation
Checked 2026-08-13
- WateringSourced guidancemoderate confidence
- Plant Finder — Missouri Botanical Garden: Syngonium podophyllum
Checked 2026-08-13
- FeedingSourced guidancemoderate confidence
- Plant Finder — Missouri Botanical Garden: Syngonium podophyllum
Checked 2026-08-13
What goes wrong
| Problem | How often | Notes |
|---|---|---|
| Aphids | occasionalsourceHorticultural consensusmoderate confidence No external citation — see the evidence type above. Checked 2026-08-13 |
Safety and edibility
Listed as harmful to cats or dogs
Syngonium is listed as harmful if eaten. All parts carry needle-shaped insoluble calcium oxalate crystals, which drive into the soft tissue of the mouth on contact. The pain is immediate, which is why an animal rarely takes a second bite and why fatalities are rare — but the drooling and swelling that follow are real and distressing.source
Sourced guidancehigh confidence
- ASPCA Animal Poison Control Center — toxic and non-toxic plant list — American Society for the Prevention of Cruelty to Animals: Syngonium podophyllum — toxic plants list
Checked 2026-08-13
Affected parts: all parts.
- Pets and livestockpetschildrenAll parts contain insoluble calcium oxalate crystals. Chewing causes immediate burning of the mouth, drooling and swelling — painful and distressing rather than usually life-threatening, and the pain generally stops an animal after one bite.
source
Sourced guidancehigh confidence
- Royal Horticultural Society: Syngonium podophyllum — toxicity
Checked 2026-08-13
Keep syngonium out of reach of pets that chew plants and of small children. If chewed, rinse the mouth and offer water; seek veterinary or medical advice if swelling affects breathing or swallowing.
Sources for this page
GrowingHQ editorial synthesis · Plant Finder · Royal Horticultural Society
Each figure on this page carries its own citation, under the “where these figures come from” note in its section. Record last reviewed 2026-08-14.
If something is wrong with it
- Brown, crisp leaf tips — 2 causes GrowingHQ holds for syngonium
Something else? Work through it with the diagnostic tool.