String of Dolphins Care (× Bacurio delphinatifolius)

Also known as: Dolphin Necklace, Dolphin Plant
String of Dolphins

About String of Dolphins

String of dolphins, × Bacurio delphinatifolius, is a trailing succulent known for its small, curved leaves that resemble leaping dolphins. It forms long, hanging stems that suit shelves, hanging baskets, and high planters.

This hybrid likely involves South African succulent parents, so it prefers bright, dry conditions and stores water in its leaves. It usually grows slowly and stays compact indoors, which makes it suitable for small spaces.

Overall, it is considered moderate in difficulty, mainly because it is sensitive to overwatering and low light. Those who learn how to care for String of Dolphins often find it a long-lived and rewarding houseplant.

Main Plant Requirements

Care Difficulty

Moderate Care

Light Preference

Partial Sun

Water Requirements

Moderate Water

Temperature Preference

Warm Climate

Hardiness Zone

Unknown

Soil Texture

Sandy, Loamy, Rocky

Soil pH

Acidic (5.5–6.5), Slightly acidic (6.5–7.0)

Soil Drainage

Well-drained

Fertilization

Minimal (feed rarely)

Get Personalized Care Plan

Scan your plant to receive care tips personalized for your specific plant

Available on iOS and Android

How to Care for the String of Dolphins

This succulent hybrid prefers bright, indirect light that mimics open, airy habitats.

  • Provide 4–6 hours of bright, indirect light daily; east-facing morning sun or light filtered through a sheer curtain is ideal for String of Dolphins.
  • Tolerates light partial shade, but stems stretch and leaf gaps widen if grown in less than 3–4 hours of bright light.
  • Protect from intense midday and late-afternoon sun, which can scorch leaves; in summer, move slightly back from south- or west-facing exposures.

This plant stores water in its leaves and needs infrequent, careful watering.

  • Allow the top 3–5 cm of soil to dry fully before watering; in warm growing seasons this often means waiting until leaves just start to feel less firm.
  • Use a sharply draining, gritty mix so water runs through quickly, reducing root-rot risk for × Bacurio delphinatifolius.
  • In winter, water much less often when growth slows; prune back if stems shrivel, but avoid soggy, dark, mushy foliage, which signals overwatering.

This succulent grows best in warm, stable conditions without frost exposure.

  • Aim for 65–80°F (18–27°C) during active growth; brief dips to 60°F (16°C) are usually tolerated without damage.
  • Avoid temperatures below 40°F (4°C); frost can scar or kill foliage and stems, so protect plants if cold nights are forecast.
  • In hot spells above 90°F (32°C), increase airflow and provide light shade to limit stress, especially for shallow or container root systems.

This succulent handles typical indoor humidity and rarely needs special adjustments.

  • Target 30–50% humidity, similar to most heated or air‑conditioned homes.
  • Dry air is usually tolerated; issues appear more from overwatering than from low humidity.
  • If leaf tips shrivel while soil stays dry for long periods, group pots together or move away from strong heating vents.

This plant needs a sharply draining, airy mix that dries quickly between waterings.

  • Use a gritty, sandy mix such as 50–60% cactus/succulent mix blended with coarse perlite or pumice.
  • Aim for pH around 6.0–7.5, which most commercial cactus mixes already provide.
  • Ensure the mix feels loose and crumbly so roots receive ample oxygen and excess water drains in seconds, not minutes.
  • Avoid heavy, peat‑only or garden soils that stay wet or compact, as × Bacurio delphinatifolius is prone to root rot in stagnant conditions.

This species is well suited to container growing due to its compact, trailing habit.

  • Choose a wide, shallow pot that allows roots to spread laterally while keeping the soil volume small enough to dry efficiently.
  • Prefer unglazed terracotta in humid or cool homes, as it speeds evaporation and reduces the risk of chronically damp soil.
  • Secure hanging containers or rail planters firmly because the trailing stems can create uneven weight that shifts the pot over time.

This hybrid succulent, often sold as String of Dolphins, benefits from light feeding during its active growing season.

  • Use a balanced liquid fertilizer (around 10-10-10 or 20-20-20) diluted to 25–50% strength for container plants.
  • Apply every 4–6 weeks in spring and summer, only on moist soil, to avoid root burn.
  • Stop feeding in fall and winter when growth slows, as excess nutrients can cause weak, leggy stems.
  • Avoid heavy compost or rich slow-release products that keep soil wet; prioritize well-draining, low-salt formulas.

Pruning × Bacurio delphinatifolius keeps the trailing stems compact and promotes denser growth.

  • Best time for pruning is late winter to early spring, just before active growth starts.
  • Use clean, sharp scissors or snips to remove dead, shriveled, or damaged stems at their base.
  • Shorten excessively long or sparse vines to encourage branching and a fuller hanging shape.
  • Take healthy tip pieces from pruned stems for cuttings, combining maintenance with propagation.

This plant prefers slightly snug containers and only needs repotting when growth or roots become constrained.

  • Check for roots circling the pot, pushing through drainage holes, or slowing top growth as signals to repot.
  • Plan to repot every 2–3 years in spring, using a shallow pot with excellent drainage and a gritty succulent mix.
  • Water lightly 1–2 days before repotting to reduce root breakage, then gently tease apart circling roots.
  • After transplanting, keep the plant in bright, indirect light and water sparingly for 7–10 days to limit stress.

Propagation of × Bacurio delphinatifolius is commonly done from stem cuttings taken during the warm growing season.

  • Take 5–8 cm healthy stem cuttings in late spring or summer, removing the lowest leaves.
  • Allow cut ends to dry and callus for 1–2 days to reduce rot risk before planting.
  • Place cuttings on or slightly in a fast-draining succulent mix, keeping the medium barely moist.
  • Provide bright, indirect light and warm conditions around 70–75°F until roots form, usually in a few weeks.

This succulent hybrid is not very frost tolerant and benefits from mindful winter care, especially in cool climates.

  • In regions below 30–32°F, grow × Bacurio delphinatifolius in containers that can be moved indoors for winter.
  • Place indoor plants in the brightest possible spot, away from cold drafts and heating vents.
  • Allow soil to dry more deeply between waterings in winter, as reduced light and cool temperatures slow growth.

Care Tips

Rotate For Symmetry

Rotate the pot 90° every 2–3 weeks so all sides receive similar light, which keeps the dolphin-shaped leaves evenly spaced and prevents one-sided, sparse growth.

Refresh Leggy Stems

If older vines become thin and bare near the base, cut them back by 1/3 and replant the healthy stem tips into the same pot to thicken the plant and maintain a full cascade.

Use Hanging Height

Hang the plant so the top of the pot is at or just below eye level, which gives vines enough vertical drop for an attractive curtain while still allowing quick inspection for pests and shriveled segments.

Quarantine New Plants

Keep any new succulents at least 2–3 weeks in a separate area before placing them nearby, and inspect weekly for mealybugs or mites to reduce the risk of infestations spreading to this plant.

Seasonal Light Adjustment

In winter, move the plant slightly closer to the window or use a small grow light on a 10–12 hour timer to compensate for weaker natural light when growing String of Dolphins in darker homes.

Common Pests and Diseases

Mealybugs

This pest feeds on sap and hides in leaf joints and along the trailing stems, often appearing as small white cottony clusters. Symptoms include slowed growth, puckered dolphin-shaped leaves, and sticky honeydew on foliage or nearby surfaces.

Solution

Remove visible clusters with a cotton swab dipped in 70% isopropyl alcohol, then rinse the plant gently with lukewarm water. For ongoing × Bacurio delphinatifolius plant care, repeat alcohol spot treatments weekly and improve light and air movement to reduce reinfestation risk; use a light horticultural oil or insecticidal soap if the infestation is more extensive.

Aphids

These insects cluster on tender new growth and flower stalks, sucking sap and causing distorted, curled, or stunted dolphin leaves. Sticky honeydew and sooty mold on stems or pots often appear after prolonged infestation.

Solution

Shower the plant with a gentle but firm stream of water to dislodge aphids, then treat soft tissue with insecticidal soap, thoroughly coating undersides of leaves and nodes. Repeat every 5–7 days for several cycles and avoid overfertilizing, which encourages soft, aphid-attracting growth.

Spider mites

This pest thrives in warm, dry indoor air and attacks the thin dolphin leaves, causing tiny pale speckles, dull foliage, and fine webbing along stems. Symptoms include overall loss of vigor and leaf drop if populations are high.

Solution

Rinse foliage carefully under lukewarm water, focusing on the undersides of leaves and between leaf pairs, then apply insecticidal soap or a light horticultural oil labeled for mites. Increase humidity slightly around the plant and avoid placing it directly over heaters, as very dry air favors mite outbreaks.

Fungal leaf spot

This disease causes small brown or tan spots with darker margins on individual dolphin leaves, sometimes leading to premature leaf drop on older segments. Symptoms include localized lesions that may enlarge in humid, poorly ventilated conditions.

Solution

Remove and discard affected leaves, then allow the soil surface to dry slightly between waterings and improve airflow around the foliage. Water at the soil level, avoid wetting leaves, and if spread continues, apply a targeted houseplant-safe fungicide according to label directions.

Stem and crown rot

This disease affects the base of stems and the crown where multiple vines emerge, especially if the plant sits in consistently wet or poorly drained soil. Symptoms include blackened, mushy stem bases, collapse of entire trailing sections, and a sour smell from the potting mix.

Solution

Cut away and discard all soft, darkened tissue and take healthy stem cuttings to re-root in fresh, fast-draining succulent mix. Reduce watering, ensure the pot has good drainage, and keep the plant in bright light so the soil dries reliably between waterings to prevent recurrence.

Interesting Facts

Hybrid dolphin foliage

This plant is a bigeneric hybrid between Curio rowleyanus and Curio articulatus, which gives it the distinctive dolphin-shaped leaves that appear to be jumping along the trailing stems. The curved leaf with a pointed tip and small notch resembles a leaping dolphin more closely than either parent species.

Adapted for drought

Like its parent species from arid regions of southern Africa, this hybrid stores water in its succulent leaves and stems, allowing it to tolerate dry spells better than many ornamental houseplants. The small translucent window on the upper side of some leaves helps light penetrate deeper into the tissue to support photosynthesis while minimizing water loss.

Trailing growth habit

The species forms long, cascading stems that can easily reach hanging basket length under good light. In habitat-inspired conditions, the plant uses this trailing habit to spread over rocks or down slopes, maximizing light exposure while keeping its roots in relatively cool, shaded substrate.

FAQs about String of Dolphins

Brown tips or patches usually result from underwatering, very low humidity, or fertilizer/salt buildup in the soil. Check moisture with your finger, flush the pot occasionally, and avoid placing the plant too close to hot, dry air sources.

Grow Healthy Plants with Botan Care

Keep your plants happy and healthy with plant identification, disease detection, and easy care guidance.

Botan plant care app — identify plants on mobile

Explore More Plants