How to Grow String of Turtles

String of turtles plant in yellow pot on top of stacked books

The Spruce / Krystal Slagle

String of Turtles (Peperomia prostrata) is a tiny succulent native to Brazil that thrives in a climate that mimics those found in the average household. Because of this, it's a popular plant for houseplant collections and apartment jungles worldwide. 

It's small in size and has a slow growth rate, reaching full maturity in three to five years. This makes string of turtles a good choice if you have limited space. The plant's attractive leaf shape also makes it a favorite to use in fairy gardens, container gardens, and terrariums.

That same leaf shape is what gives the plant its common name. Each one looks like the shell of a miniature turtle strung together. Every tiny leaf on its trailing vine has intricate multi-colored patterns covering its surface—the colors become muted with age and eventually become bicolored by maturity, typically a darker green contrasted by light green. No matter how it is used, the uniqueness of Peperomia prostrata will make it a valuable addition to any indoor plant collection and an excellent conversation piece.

Common Name String of Turtles
Botanical Name Peperomia prostrata
Family Piperaceae
Plant Type  Succulent
Mature Size 12 in. long, 3-4 in. wide
Sun Exposure Full sun
Soil Type Loamy, moist
Soil pH Neutral to acidic
Hardiness Zones 10 to 12, USA
Native Area  Brazil

String of Turtles Care

When properly cared for, a string of turtles plant can be the pride of a tropical plant collection, but it will take a little effort and some adapting from the typical methods used to maintain most succulents. Different, though, does not mean complicated. An adequately cared for Peperomia prostrata will reward owners with a unique, well-kept, vining succulent.

String of turtles in yellow pot on white shelf with other houseplants

The Spruce / Krystal Slagle

String of turtles plant in yellow pot on stacked books closeup

The Spruce / Krystal Slagle

Light

String of turtles plants love bright indirect sunlight and will thrive in these conditions. Keeping these plants in full sun for too long will damage the leaves, but too little light and they will fail to produce new growth.

Soil

Those familiar with raising succulents may be used to using premixed soil that has been formulated especially for succulents and cacti. These premixes should not be used for string of turtles plants. 

Instead, a mix consisting mainly of organic matter should be used. One that is rich in peat is ideal. This formula is easily found in a commercial seed starting mix. Peat is acidic, which is perfect for this plant, but take care that the pH does not get too low. Testing the soil is every so often is a good idea. 

Water

String of turtles plants tend to suffer from overwatering more than they do dry conditions. The plant is native to the Brazilian rainforest, so it prefers slightly moist conditions. This can be accomplished by keeping the soil moist only during the growing season and using the succulent "soak and dry" method during the winter months. 

Avoid overwatering by drenching the soil till water runs out the bottom of the pot, and the soil is thoroughly moist. Do not water the plant again until the top two inches of soil have dried out. Using this method ensures the plant stays properly watered during dormant months.

Temperature and Humidity

This plant prefers cooler, more humid temperatures over the warmer temperatures most succulent fans have come to expect. Keep your string of turtles plant in a consistent temperature environment that ranges from 68 degrees Fahrenheit to 75 degrees Fahrenheit. During drier summer months or when a heater is running during the winter, you may want to use a mister or humidifier to increase humidity around the plant, as long as care is taken to ensure that the leaves are not left wet.

Fertilizer

Feeding string of turtles will help the plant maintain a bright shiny vigor and ensure that the leaves' color and patterns are held throughout the growing season. Feed it with a diluted houseplant fertilizer biweekly during the growing season—fertilizing is not recommended during the fall or winter months.

Pruning String of Turtles

If string of turtles plants are not pruned regularly, they can develop an unkempt, ragged, and leggy appearance. Occasional pruning will allow you to remove dead and damaged stems and leaves, and tame unwanted growth. It also encourages new, more vigorous growth to flourish. Do all pruning with sanitized scissors or very sharp snips.

Propagating String of Turtles

Propagating string of turtles plants via cuttings is an easy and straightforward way to increase your plant collection or develop plants to gift to friends. You can propagate the plant any time of year using just a few quick steps. Here's how:

  1. Using a mature mother plant and sharp scissors, snip off a few cuttings just below a node. The cutting should be at least 3 inches long.
  2. Remove any leaves on the lower portion of the cutting, near where you removed the stem from the plant.
  3. Fill a small pot with regular potting mix that is moist but not soggy.
  4. Plant the cut end of the stem into the potting mixture, ensuring at least one node falls below the surface of the soil.
  5. Place the plant somewhere that gets bright, indirect light.
  6. Keep the soil moist but not soggy. After a few weeks, gently tug the cutting—if you feel resistance that means roots have formed and you can now care for your plant as normal.

Common Pests and Plant Diseases

Generally, string of turtles plants are not overly susceptible to major pests or diseases. Like most houseplants, they can be vulnerable to pests like whiteflies, mealybugs, and spider mites. If you spot signs of an infection, treat the plant using insecticidal soap or neem oil. Additionally, string of turtles plants are sensitive to overwatering and develop root rot if they are not in well-draining soil or a container with ample drainage holes.

FAQ
  • Are string of turtles plants easy to care for?

    Yes. While their care differs slightly from that of a traditional succulent, string of turtles plants are easy to grow successfully.

  • Can string of turtles plants be grown indoors?

    Yes—in fact, string of turtles plants are primarily grown indoors, since their natural tropical environment is not easily found in the United States.

  • How fast dostring of turtles plants grow?

    String of turtles plants grow slowly and don't reach their mature size until three to five years time.