Neon Pothos

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Brightest a few feet from a window and out of direct sun, where new leaves come in their most electric. In low light it copes, though fresh leaves arrive smaller and the neon fades toward ordinary green.

With a north window, the sill itself works. In a west or south window, direct sun yellows pothos leaves (Penn State Extension), and on a leaf already this yellow, the damage hides until patches look bleached or scorched; a sheer curtain or the width of the room spares it.

Deep shade costs more than color: fresh leaves also arrive smaller (University of Florida), so a plant kept far from the glass slowly turns into a quieter, finer-leaved version of itself.

Give it the brightest shade you can spare: the glow is the reason to own one, and light is what keeps it on.

A thorough drink every 7-10 days in summer and 10-14 in winter, with the top of the soil drying between. Its long chartreuse vines go limp when it’s thirsty, a passing droop; constant wet soil is what leads to root rot.

Black edges or tips show sharply against chartreuse; University of Wisconsin Extension traces them to overwatering, underwatering, or fertilizer salts. If that bothers you, consider feeding less often. It’ll survive either way.

Trimmed tips root in plain water (NC State), and a jar of them on a sill makes its own small lamp of chartreuse until you’re ready to pot them.

Gone for a while? Two weeks is fine if it’s watered the day you leave. It may droop a little by the time you’re back; a good soak brings it round.

Fast-growing chartreuse vines spilling 6-8 feet do the styling for you: set it high against dark wood or a navy wall and let the color carry the shelf. Trim any vine that runs longer than the spot allows.

As older leaves drop, the foliage gathers at the vine ends (University of Wisconsin Extension), and on Neon that leaves a bright tassel of chartreuse at each tip. If the bare stretches near the pot bother you, trimming a few vines back each spring keeps fresh growth coming close to the soil; it’s healthy either way.

Its leaves run slender and thin (Clemson Extension), so even a full plant looks airy rather than heavy.

That trailing habit fits the high, overlooked places: the top of kitchen cabinets, a floating shelf above a desk, a hook in a window bay where the vines can fall in a sheet of color.

A nibble may sting a pet’s or child’s mouth and bring drooling, swelling, or vomiting that passes. The ASPCA lists its species as toxic to dogs and cats, though cases are usually mild.

Every part of the plant carries insoluble calcium-oxalate crystals (ASPCA; University of Florida), so a stem snapped in a toddler’s fist counts the same as a leaf in a cat’s mouth. Most cases stop at a sore mouth and some gagging. Rarely, a pet’s throat swells enough to make breathing hard (Pet Poison Helpline), and that one is worth a call right away. Sap in an eye may bring tearing and squinting (Pet Poison Helpline).

If symptoms don’t settle or anything worries you, Poison Control can walk you through it for a child. For a pet, reach your vet or the ASPCA Animal Poison Control Center (a fee may apply).

The sap can irritate skin (University of Florida), so wash your hands after a trim. With a cat or a crawler at home, keep the trailing ends above a cat’s reach, or in a room with a door you can close.

1. ASPCA: mild for dogs.
2. Merck Veterinary Manual: mild for dogs (rates the whole genus).
3. Pet Poison Helpline: mild for dogs.
4. ASPCA: mild for cats.
5. Merck Veterinary Manual: mild for cats (rates the whole genus).
6. Pet Poison Helpline: mild for cats.
7. Poison Control: mild for kids.

Cats and dogs: Most of the leading sources agree.

Kids: Poison Control lists it; the effect is mouth pain from oxalate crystals.

Happiest at 70-80°F, and it shouldn’t sit below 55°F. Keep it away from cold glass in winter. It likes 50-70% humidity and gets by at 30%.

Temperature

70-80°F

Humidity

50-70%

Mealybugs hide in leaf axils, stem nodes, and under leaves, and scale clings to stems and along the veins below. Spider mites sit under leaves; thrips also tuck into unfurling new leaves.

• Mealybugs
• Scale
• Spider mites
• Banded greenhouse thrips

Few. Indoors it’s mostly pest-free; mealybugs, scale, spider mites, and thrips turn up now and then, and root rot if the soil stays wet.

Mealybugs look like tufts of white cotton where the leaves meet the vine; scale looks like small brown bumps stuck to the stems. Wipe them off with a cotton swab dipped in rubbing alcohol (a fingernail lifts scale), then check again next week.

Spider mites leave fine webbing and a pale, speckled look; thrips are tiny, slender insects that turn leaves silvery and speckled. For either, rinse the whole plant in the shower, undersides of the leaves included. If they come back, an insecticidal soap spray is the next step.

Root rot is the disease to watch: leaves yellow or blacken at the edges while the soil is still wet. Let it dry out, empty the saucer, and water less often from then on.

Feed every other month in spring and summer (3 times), none in winter, and trim or pinch stems twice. Wipe off dust and pick up yellowed leaves twice a year; repot every 1-2 years in spring, when roots show.

• Feed3× a year
• Prune2× a year
• Clean leaves2× a year
• Pick up shed leaves2× a year
• Repot1× a year

Any good potting mix that drains fast, in a pot with a drainage hole.

Repot every year or two, in spring, into a pot one size up, once roots poke out of the drainage holes or fill the pot.

Food is optional: a houseplant fertilizer every other month in spring and summer, and none in winter, is all it needs.

Each heart-shaped leaf is one plain, electric chartreuse, with no stripes or splashes. The surface has a gentle sheen, and the trailing vines grow full enough to cover the soil.