Want a small houseplant with real texture? Meet Peperomia caperata, the emerald ripple peperomia. Its small, heart-shaped leaves are so deeply wrinkled they look quilted, and the color sits so dark in the furrows it reads almost black.
It’s a tidy little plant for a desk, a shelf or a windowsill, and it doesn’t ask for much. Get the water and the light right and it keeps its neat, compact mound with very little fuss.
Where does the name come from? The genus name Peperomia comes from two Greek words, peperi (pepper) and homoios (resembling), a nod to its resemblance to the true black pepper plant, Piper nigrum. The species name caperata is Latin for wrinkled, describing the leaf texture. Peperomias are closely related to black pepper, not just look-alikes.
Peperomia Caperata Quick Care Tips
- Botanical name: Peperomia caperata (Peperomia argentea is listed as a former name)
- Common names: Emerald ripple peperomia, ripple peperomia, green ripple peperomia, little fantasy peperomia, radiator plant
- Pronunciation: pep-er-ROH-mee-uh kap-er-AY-tuh
- Family and origin: Piperaceae (pepper family); native to Brazil
- Growability: Easy, low maintenance
- Hardiness zones: USDA 11 to 12
- Size: About 8 inches tall and wide; some guides say up to 10 inches
- Flowering: Thin, whitish-green flower spikes, 2 to 3 inches long, in summer and early fall; not showy
- Light: Bright, indirect light; a north or east window; no direct afternoon sun
- Temperature: Minimum 60°F in winter; keep away from cold drafts; 65 to 86°F for peperomias generally, always above 50°F
- Humidity: Sources differ: high humidity in summer, or medium to low relative humidity
- Soil: Peaty, well-drained potting mix in a pot with drainage holes
- Water: Let the soil dry out between waterings; water less from fall through winter
- Fertilizer: Light feeding in spring and summer only
- Pests and problems: Mealybugs, spider mites, whiteflies, scale, fungus gnats; root rot from overwatering; leaf spot; ring spot virus (both disease reports describe it on P. obtusifolia)
- Propagation: Leaf cuttings or stem tip cuttings in spring
- Pet safety: Most peperomias are considered safe for pets; emerald ripple peperomia is non-toxic to dogs, cats and horses
- Uses: Desk, tabletop and windowsill plant; ground cover in frost-free gardens
What Peperomia Caperata Looks Like
It’s a dense, mound-forming tropical perennial that typically grows to 8 inches tall and as wide. It forms rosettes of long-stemmed, wrinkled, deeply corrugated, heart-shaped dark green leaves, each up to about 1½ inches long, on red-tinged stalks. The leaves are so dark they almost appear purple, and the leaf stalks are usually pinkish to reddish.
In the wild it’s a Brazilian plant. It’s an epiphyte (a plant that grows on other plants for support), and in the tropics it grows as an evergreen ground cover and can also be epiphytic in the jungles of South America. Outdoors in the U.S., it’s listed for USDA zones 11 to 12 only, so for most of us it’s a houseplant.
Flowers: The Mouse Tails
Don’t be surprised when skinny spikes poke up above the leaves. Tiny whitish-green flowers bloom on 2- to 3-inch spikes in summer and early fall, atop thin reddish stalks. They’re not showy, but they come in abundance, and the stalks are said to resemble mouse tails. Clemson Extension says peperomia flower spikes are considered unattractive, and removing them lets the plant put its energy into leaves. Your call.
Ripple Peperomia Varieties
Breeders have had a lot of fun with this species. Cultivars of Peperomia caperata include ‘Burgundy’ (red-green leaves), ‘Red Ripple’ (bright purplish red leaves that turn light green as they mature), ‘Rosso’ (thin, pointed dark green leaves, red underneath), ‘Frost’ (silvery green leaves), ‘Silver’, ‘Quito’, ‘Abricos’, ‘Pink Lady’, ‘Red Luna’ and ‘Variegata’. Ripple plant cultivars come with burgundy-red foliage or green with silver variegation. One caveat on ‘Rosso’: it is sold as a caperata, but its U.S. plant patent (PP24,379) describes ‘Eden Rosso’ as a seedling from a cross of Peperomia marmorata and Peperomia metallica.
Read more about Peperomia Rosso, Peperomia caperata Frost and the crinkle peperomia, or browse more Peperomia varieties.
Emerald Ripple Peperomia Care
Light
Bright, indirect light is the sweet spot. The best indoor spot is a north or east window; avoid direct afternoon sun. Medium light, such as sun filtered through a thin curtain, is ideal. Indirect light from an east or south window works too, and peperomia can even tolerate somewhat low light near a large north window.
Watch the sun, though. If peperomia gets direct sun, the leaves may scorch. The plant tolerates low light for several months without stress.
No good window? You’re in luck. It thrives under fluorescent lights and performs well with bright fluorescent lights, which makes it a natural office plant.
Temperature
Keep it warm. The minimum recommended winter temperature is 60°F, and wetness and cold winter temperatures must be avoided. The plant will not tolerate very drafty sites, so keep it away from cold windows, doors that open to winter air, and heating or cooling vents. For peperomias in general, the RHS gives a warm room of about 65 to 86°F (18 to 30°C) and says to keep them always above 50°F (10°C).
Want to give it a summer outdoors? Peperomias can go outside once nighttime temperatures stay at 60°F or higher, placed in a bright but shady spot with no direct sun.
Watering
Here’s where most ripple peperomias get into trouble: too much water. Peperomia prefers to dry out between waterings, and an overwatered plant will drop its leaves. Root rot caused by overwatering is the most common disease of peperomia.
Water moderately but consistently during the growing season (spring to fall), letting the soil almost dry on top before watering again, then reduce watering from fall through winter. The plant will not tolerate wet soil or very dry soil. Water, let the pot drain, and only then set it back in its saucer.
Bottom watering is a good habit for this plant. Fungal leaf spots can be prevented by keeping the leaves dry when you water. A University of Illinois Extension report on peperomia diseases advises watering from below and keeping the soil on the dry side to help avoid Phytophthora rot.
Humidity
Sources don’t fully agree here, so here are both views. The Missouri Botanical Garden says Peperomia caperata likes high humidity in summer and suggests setting the pot on wet pebbles in a humidified room and misting often. NC State Extension says medium to low relative humidity suits it, and its general peperomia page says these plants can thrive in the humidity of most homes, with a humidifier if the home is very dry. A humidifier also helps in winter.
If you mist or use a pebble tray, keep air moving. Good air circulation and keeping the leaves dry help prevent leaf spots.
Soil and Repotting
Drainage comes first. Use a peaty potting mix or a well-drained houseplant or cactus potting mix; a porous, well-draining potting soil matters because the plant is susceptible to root rot. Always use a pot with drainage holes.
Growers go even lighter. A UF/IFAS Extension production guide says peperomia roots are very sensitive to waterlogged soil and that peat-lite mixes with coarse particles, such as perlite, give the needed aeration.
Don’t rush to repot. Peperomia does not need repotting every year and can stay in the same pot for several years. When you do repot, choose a pot only slightly larger than the old one.
Fertilizing
Go easy on the food. Fertilize peperomia only while it is actively growing in spring and summer, using a low-strength liquid fertilizer occasionally, or a slow-release granular fertilizer once a year. Another approach is fertilizer once a month during the growing season and none from fall through winter. Follow the label for the amount.
Why so light? Peperomia roots are very fine and easily damaged by excess salts, and roots often die back before you see any sign on the leaves. If salts build up, flush the pot with plenty of water.
Pruning and Grooming
Trim off old or damaged leaves whenever they show up. For a fuller plant, prune a stem just above a leaf node so the plant branches. Cut back foliage as needed to keep the plant’s shape.
How To Propagate Peperomia Caperata
Ripple peperomia is one of the easiest plants to share. Propagate it by leaf or stem tip cuttings in spring; commercial growers normally propagate Peperomia caperata from leaf cuttings.
Leaf cuttings. Remove a leaf with at least an inch of its leaf stalk (petiole) and insert it into a rooting medium. New plants form at the base of the stalk and can then be separated and potted.
Stem cuttings. Cut a 3- to 5-inch piece of stem, remove the leaves on the lower third, dip the end in rooting hormone, insert it into potting soil or a rooting medium, cover it with clear plastic and keep it out of direct sun.
Take cuttings only from healthy plants. Peperomia ring spot is commonly spread by taking cuttings from plants that look healthy but are infected.
Related: Learn more about Peperomia propagation.
Peperomia Caperata Pests and Diseases
The good news: peperomias are subject to only a few diseases. Two of them, Phytophthora rot and cutting rot, are soilborne rots, and the advice for both starts with avoiding overwatering.
Root and stem rot. Root rot from overwatering is the most common peperomia disease, and root rot and yellowing or curling leaves point to overwatering. Phytophthora rot is a black rot that starts at the soil line, causing lower leaves to droop and plants to wilt and die; destroy affected plants, avoid overwatering and heavy, poorly drained mixes, and keep the soil on the dry side.
Leaf spot. Leaf spot occasionally occurs on this species. Keep the leaves dry and give the plant good air circulation.
Ring spot. This one is a virus. Peperomia ring spot shows up as concentric brown rings that disfigure the leaves, sometimes with cupped or twisted young leaves and stunting, and it is commonly spread by taking cuttings from infected plants. No chemical controls a virus disease, so destroy plants with these symptoms and clean cutting tools between plants. Diseased plants will not recover. The ring spot reports describe it on Peperomia obtusifolia; neither names Peperomia caperata.
Insects. Mealybugs, spider mites, fungus gnats, scale and whiteflies are the pests most often found on peperomias, and whiteflies, mealybugs and spider mites are the ones listed for this species. Check under the leaves and in the leaf joints when you water.
Related: More on controlling pests and diseases on peperomia.
Is Peperomia Caperata Safe for Pets?
Yes. Most peperomias are considered safe for pets, and the ASPCA lists emerald ripple peperomia (Peperomia caperata) as non-toxic to dogs, cats and horses. That still doesn’t make it a chew toy, so keep it where curious pets can’t shred it.
Ways To Use Emerald Ripple Peperomia
In most of the United States, this is an indoor plant. It is commonly used as an interior specimen or desktop plant and suits a container or hanging basket. Its small size suits a tabletop, a bookshelf or an office desk under fluorescent lights.
In frost-free gardens, it can be grown as a ground cover or at the front of a border.
Is your ripple peperomia a deep green, a burgundy or a silver? Tell us which one is on your windowsill!
Frequently Asked Questions
Is Peperomia caperata safe for cats and dogs?
Yes. Most peperomias are considered safe for pets, and emerald ripple peperomia (Peperomia caperata) is non-toxic to dogs, cats and horses. That makes it a good choice for a home with animals, though it is still best kept where pets can’t chew it to pieces.
How often should I water a ripple peperomia?
Let it dry out between waterings. Peperomia prefers to dry out between waterings, and an overwatered plant will drop its leaves. Water moderately but consistently from spring to fall, letting the soil almost dry on top, and water less from fall through winter. Overwatering causes root rot, the most common peperomia disease, so let the pot drain before it goes back in its saucer.
How much light does Peperomia caperata need?
Bright, indirect light is best. A north or east window works well; avoid direct afternoon sun, which may scorch the leaves. It tolerates low light for several months and performs well under bright fluorescent lights, which makes it a good office plant.
What is the lowest temperature Peperomia caperata can handle?
Keep it at 60°F or warmer. That’s the minimum recommended winter temperature, and wetness and cold winter temperatures must be avoided. The plant will not tolerate very drafty sites, so keep it away from cold windows, outside doors and vents in winter.
What causes ring spots on peperomia leaves?
A virus. Peperomia ring spot causes concentric brown rings on the leaves and is commonly spread by taking cuttings from plants that look healthy but are infected. No chemical controls it, so destroy plants with symptoms and clean cutting tools between plants. The reports describe it on Peperomia obtusifolia rather than caperata. Take cuttings only from healthy plants.