Peperomia prostrata, commonly known as String of Turtles, is a charming trailing plant admired for its tiny, round leaves patterned like miniature turtle shells.

Native to South America, this semi-succulent species forms delicate cascading stems covered in coin-shaped foliage marked with intricate light and dark green veining. Its compact growth and unique texture make it perfect for shelves, hanging planters or terrariums.

Despite its delicate appearance, it’s relatively easy to care for once you understand its watering needs.

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Key Features

• 🌿 Small, round “turtle shell” patterned leaves

• 🌿 Trailing, cascading growth

• 🌿 Compact and slow-growing

• 🌿 Semi-succulent foliage

• 🌿 Ideal for shelves and hanging pots

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Care Guide

Light

Bright, indirect light is best.

• East- or west-facing windows are ideal

• Avoid harsh direct sunlight

• Too little light may cause leggy growth and faded patterns

Bright conditions keep the leaf markings bold and defined.

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Watering

Peperomia prostrata prefers to dry slightly between waterings.

• Allow the top half of the soil to dry out

• Water thoroughly, then allow excess to drain

• Reduce watering in winter

As a semi-succulent, it stores some moisture in its leaves and is more tolerant of slight underwatering than overwatering.

Overwatering is the most common cause of root rot.

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Humidity

Adapts well to average UK home humidity.

• Ideal range: 40–60%

• Does not require high humidity

• Avoid very dry air in winter

Unlike Calatheas, it is not particularly fussy about humidity.

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Temperature

• Ideal: 18–24°C

• Avoid temperatures below 15°C

• Keep away from cold draughts

Stable indoor warmth suits it well.

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Soil & Potting Mix

Use a free-draining mix:

• Peat-free houseplant compost

• Perlite

• Orchid bark or coarse sand

Good drainage is essential to prevent root rot.

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Feeding

Feed lightly during spring and summer:

• Balanced liquid fertiliser every 4–6 weeks

• Dilute to half strength

• Do not feed in winter

Overfeeding can cause soft growth.

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Growth Habit

• Trailing and cascading

• Stems can grow 30cm+ in length

• Slow to moderate growth rate

Pinching back stems encourages bushier growth.

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Propagation

Very easy to propagate:

1. Take stem cuttings with a few leaves

2. Root in water or directly in soil

3. Keep warm and lightly moist

Roots typically develop within 2–4 weeks.

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Common Problems

Shrivelled leaves

• Underwatering

Yellow, soft leaves

• Overwatering

Leggy growth

• Insufficient light

Leaf drop

• Sudden temperature change

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Styling Ideas

• Perfect for hanging planters

• Beautiful cascading from shelves

• Ideal for terrariums

• Pairs well with other trailing plants

Its fine texture contrasts beautifully with larger-leaved plants.

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Toxicity

Peperomia prostrata is generally considered non-toxic to pets, making it a safer choice for homes with cats and dogs.