The PILF-opedia

“The one that changes shape the minute it gets comfortable.”

Arrowhead Plant

Syngonium podophyllum

Arrow-shaped leaves washed in pink or silver, on stems that bush up, then wander. Grows fast and changes as it does.

Fling

2.5/5

how easy it is to care for

3.6/5

how much it stands out visually

: Dim to bright

A few feet back from a window suits it; sun bleaches it

Its best spot is near a bright window, in steady light kept off the leaves themselves. It gets by in a dark corner too, but direct sun can burn or bleach the foliage.

Every Syngonium is a hemiepiphyte from the moist, elevated forests between Mexico and Brazil (UF/IFAS): it sprouts under the canopy, then climbs toward the light. Indoors it’s rated for low light (Texas A&M), so a dimmer spot won’t break it. It does best between 250 and 1,000 foot-candles, a range that covers medium light (UF/IFAS).

A north-facing window works, or a spot back from an east one; in a south- or west-facing room, the far wall or a sheer curtain keeps the sun off. Pale, washed-out patches on the leaves may mean it’s catching more sun than it likes.

Given a pole or a trellis, it heads upward on its own, the forest climber still in it. Offer it medium light, and let it go looking for more.

: Weekly+

About every 5-8 days in summer, the surface drying between

About every 5-8 days in summer and 7-12 in winter, with the surface drying slightly between. It likes the mix never to dry out completely, even through the cooler months.

Its tolerance for wet runs surprisingly deep: in Florida it grows in forested wetlands and rides out seasonal flooding (UF/IFAS). Still, NC State lists soft rot among its problems, so give it a pot with a drainage hole.

That swampy streak shows in what it likes overhead, too: NC State calls a warm, humid setting ideal. If leaf edges crisp during furnace season and that bothers you, a bathroom with a window may suit it. It survives either way.

Gone for a while? Ten days is fine if you soak it the day you leave. Any longer, ask a friend to give it a drink.

: Medium

A fast 1-3 foot mound; its vines run up to 6 feet

Starts as a leafy clump 1-3 feet tall, then quickly sends out vines that can trail or climb to 6 feet. Pinch back the long stems to keep it a compact mound, or give it a moss pole and let it climb.

Its stems come with their own grip: NC State describes them as succulent, with roots that sprout along the way, which is how a wild stem holds itself to a tree trunk.

NC State lists it for hanging baskets, climbers, and small shrubs alike, and indoors you choose which one it becomes. Trained upward, it can fill a narrow floor corner that needs something green and tall; left loose, its stems spill from a hook by the window.

: Mildly irritating

Chewing can sting the mouths of dogs, cats, or kids

DogsMildly irritating
CatsMildly irritating
KidsMildly irritating

A chewed leaf may bring mouth pain, drooling, and vomiting in dogs and cats; the ASPCA names its oxalate crystals as the irritant. Kids may get a sore, swollen mouth, and the milky sap can redden skin.

Its sap is the part most owners actually meet. It can leave a red, itchy rash where it touches skin (NC State) and can harm eyes (UF/IFAS), so gloves are a good habit when you trim it. If sap gets in an eye, rinse it with room-temperature water for 15-20 minutes, then call Poison Control.

With a chewed leaf, swollen lips and tongue or a little trouble swallowing can come along with the sore mouth, and these usually pass on their own (ASPCA). If symptoms don’t settle or anything worries you, Poison Control is there for a child, and for a pet your vet or the ASPCA Animal Poison Control Center (a fee may apply).

A fast grower means frequent trims, so sweep up the snipped pieces before a toddler or a cat finds them. If anyone in the house likes to chew, give it a hanging hook or a shelf they can’t reach.

ASPCA: mild for dogs.
Pet Poison Helpline: mild for dogs.
ASPCA: mild for cats.
Pet Poison Helpline: mild for cats.
NC State Extension: mild for kids.

Cats and dogs: Most of the leading sources agree.

Kids: No poison-centre listing; rated from university extension sources.

: Average

65-80°F; average humidity is fine

Happiest at 65-80°F, and it shouldn’t sit below 59°F, so keep it away from cold glass in winter. Average humidity of 40-60% suits it.

Temperature: 65-80°F
Humidity: 40-60%

: Pest-resistant

Rarely bothered; peek at new shoots and leaf undersides

Rarely bothered. Aphids go for new shoots and young leaves, mealybugs for leaf axils and petiole bases, and spider mites for leaf undersides. Scale clings to stems and petioles, thrips to the leaves.

Aphids
Mealybugs
Spider mites
Scale
Banded greenhouse thrips

A few. Aphids, mealybugs, and spider mites are the usual pests, and wet soil or wet leaves can bring rot and leaf spot.

Aphids are small, soft green, pink, or black bugs bunched on new growth, and they leave the leaves sticky. Rinse them off in the shower or wipe them away with a cotton swab dipped in rubbing alcohol.

Mealybugs look like tufts of white cotton where the leaves meet the stems. Wipe them off with an alcohol swab, then check again next week.

Spider mites leave a faded, speckled look and, in a bad case, fine webbing, mostly in warm, dry air. Rinse the whole plant in the shower, undersides of the leaves included; if they come back, spray it with insecticidal soap.

Bacterial leaf spot shows as small, dark, soggy-looking spots, and stem rot as a stem going soft at the soil. Cut off spotted leaves and soft stems, keep water off the leaves, and let the top of the soil dry a little before the next soak.

: More

Feed monthly in summer; pinch, prune, wipe 4× a year

Feed monthly in spring and summer. Pinch young stem tips, prune runners, and wipe the leaves about 4 times a year. Stake it once it vines if you want it upright, and repot every few years.

Feed6× a year
Prune4× a year
Pinch4× a year
Clean leaves4× a year
Stake1× a year

A light mix that drains fast, in a pot with a drainage hole: ordinary potting mix with a few handfuls of perlite works.

Repot every few years, one size up, in spring. If you’d rather keep it small, trim the roots and put it back in the same pot with fresh mix.

Food is optional: a balanced houseplant fertilizer at half strength once a month in spring and summer is plenty. It isn’t a heavy feeder, so skip it in fall and winter.

: Suave

Green arrowheads washed pink or silver, lightly glossy

Each arrow-shaped leaf is green with a wash of pink or silver, as if brushed on by hand. The surface has a gentle sheen, and the bushy stems fill out so the leaves cover the soil.

Fun fact

Its genus name, Syngonium, joins the Greek for 'together' and 'reproductive organs,' for its fused ovaries. It’s also sold as African evergreen, though it’s from the Americas.

Designer tips

Soft, colorful leaves that look fresh and a little retro, in a hanging pot or climbing a pole.

In a hanging pot by an east window, vines trailing

The colorMatches blush pinks in a soft, pale roomThe pink-washed kinds pick up blush linen, rose clay, and dusty pink paint, and they keep their color best a few feet from a window. Silver or cream ones suit gray and white rooms instead.

The lineStarts on the table, then climbs as it growsYoung, it’s a tidy clump; with age it sends out vines up to six feet, so plan for a pole or a high shelf. Cut it back if you’d rather it stayed a clump.

The spotStarts a second plant in a glass on the counterA snipped stem roots in plain water, so a few cuttings in a clear glass make a second plant for the counter while the first one fills out.

Troubleshooting

It’s getting long and leggy

Not enough light, or it’s growing up. In a dim spot the stems stretch with long gaps between the leaves, so move it closer to a window, and cut the long stems back if you like: it fills out from below the cuts, and the pieces root easily.

Some leaves are turning yellow

Too much water, most likely, if the soil stays soggy: let the surface dry slightly between drinks and empty the saucer. If the soil’s fine and older leaves are going pale, UF/IFAS lists a lack of nitrogen, and a spring feed usually sorts it out.

Why are the leaf edges brown and crispy?

Dry soil or dry air, usually. Water about every 5-8 days in summer, before the mix dries out completely, and in winter, when the heat dries the air, a humidifier nearby helps; sun landing on the leaves can scorch the edges too.

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Why is it losing its pink or silver wash?

It wants more light. Clemson Extension notes the colorful kinds hold their color better in brighter light and dull in a dim room, so move it nearer a window, though not where sun lands on the leaves, which bleaches them.

Why do the new leaves look different from the old ones?

It’s growing up. Young leaves are simple arrows; as it matures and climbs, new leaves come in bigger and split into several leaflets, like a goose’s foot. Cut the long stems back if you’d rather keep the arrows.

My cat chewed a leaf

Expect a sore mouth: drooling, pawing at its face, maybe some vomiting. It’s mildly irritating, and the ASPCA names the oxalate crystals in the sap as the cause; if swallowing looks hard or the vomiting keeps up, call your vet or the ASPCA Animal Poison Control Center.

Soggy-looking spots showed up on the leaves

Cold water is a likely cause, so use room-temperature water from now on. If the spots are small and dark and keep spreading, it may be bacterial leaf spot: cut off spotted leaves and keep water off the leaves.

Can it go outside for the summer?

Yes, in shade: a porch or under a tree, where sun doesn’t land on the leaves. Bring it in before nights dip below about 60°F, and check it for bugs on the way in.

Can it go ten days without water?

Usually, if you soak it the day you leave. Any longer, ask a friend to give it a drink.

Propagation

Easily, from a cutting.

Cut a stem tip with two or three leaves just below a node, the bump where a leaf meets the stem, and stand it in a glass of water or a small pot of damp mix.
In a warm room it roots in about three weeks; pot it up once the roots are a few inches long.

A crowded pot can also be divided when you repot.