Peperomia prostrata aka String Of Turtles

Peperomia prostrata is an evergreen perennial from Ecuador’s wet tropics. It belongs to Piperaceae, the pepper family. Common names include string of turtles and trailing peperomia. Kew lists it as an epiphyte. It grows slowly and forms a small, trailing plant. Its fine stems spread or hang over a pot’s edge. They reach about 1 foot (0.3 m) long at maturity. Listed plant width is 0.25–0.33 feet (0.08–0.10 m). Its spreading growth is not aggressive.

The red stems carry small, round, fleshy leaves. Each leaf measures less than 0.08 feet (0.025 m) across. The leaves are simple, with smooth edges and no hairs. They grow in an alternate pattern along the stems. Dark green markings cross a lighter green background. Some leaves have white or silver markings instead. These patterns recall turtle shells and explain the common name. Young leaves can show several shades. Older leaves tend to show light and dark green.

The flowers form small, upright spikes in brown or copper tones. Each spike has a narrow, tail-like shape. Listed flower size is 0.08–0.25 feet (0.025–0.076 m). Plants kept indoors seldom bloom. The patterned leaves provide the main visual interest. This species suits pots, terrariums, and hanging baskets. Its trailing stems can spill over container rims. Growers can also raise new plants from leaf cuttings. It does well when its roots fill the pot.

Bright, indirect light helps the leaves keep their color. The plant tolerates dimmer light, but its markings lose contrast. It prefers evenly moist soil with good drainage. Sandy or loamy soil suits it. Soil can range from acidic to neutral. Average to high air humidity suits this tropical plant. A humidifier or wet pebble tray can raise indoor humidity. Keep it clear of cold drafts. It prefers steady temperatures of 68–75°F. The listed outdoor hardiness range covers USDA zones 10a–12b.

This species needs little upkeep and is easy to grow. It generally resists pests and disease, though problems can occur. Watch for mealybugs, spider mites, aphids, scale, and whiteflies. Too much water can cause root rot. Its need for moist soil does not mean waterlogged roots. NC State identifies it as non-toxic to cats and dogs. That pet-safety listing does not establish any edible use.