How To Propagate String of Dolphins by Cuttings

String of Dolphins (Senecio peregrinus) is a trailing succulent adored for its dolphin-shaped leaves and quirky cascading stems. Fortunately, this plant is also very easy to propagate — making it perfect for expanding your collection, sharing with friends, or reviving a leggy mother plant.

The most effective way to propagate String of Dolphins is via stem cuttings. This method is simple, fast, and doesn’t require any fancy equipment. With the right preparation and care, your cuttings can root in just a few weeks and grow into healthy, mature plants.

When To Propagate String of Dolphins

Timing plays a critical role in successful propagation.

Propagate String of Dolphins during the active growing season to ensure rapid rooting and recovery.

• Best time: Spring or early summer (April–July)

• Avoid: Winter months, when the plant is dormant and less likely to root successfully

Plants propagated in spring typically root faster and adjust more easily to transplanting.

Tools and Supplies You’ll Need

Having the right tools prepared will make the process cleaner and more efficient.

These simple materials ensure you can take healthy cuttings and support strong rooting.

• Sharp, clean scissors or pruning shears

• Small pots or trays with drainage holes

• Well-draining succulent or cactus soil

• Optional: rooting hormone powder

• Spray bottle or watering can with a fine rose

• Labels and pencil (optional)

Each item supports a specific part of the propagation process, from cutting to aftercare.

Step-By-Step Guide to Propagation by Cuttings

Follow this method for consistent and reliable results:

1. Select healthy stems that are plump, firm, and free from pests or damage.

2. Cut 4–6 inch sections using clean scissors or shears. Choose trailing segments with at least 3–5 dolphin-shaped leaves.

3. Remove the bottom 1–2 leaves from each cutting to expose a bare stem section.

4. Allow cuttings to dry for 24–48 hours in a shaded spot until the ends callous over. This prevents rot during rooting.

5. Optional: Dip the cut ends in rooting hormone for a higher success rate, especially in humid or low-light environments.

6. Insert the cuttings into pre-moistened soil, burying only the leafless stem portion.

7. Place in bright, indirect light, away from direct sun, and mist lightly to keep soil slightly moist.

Cuttings usually begin rooting within 2–3 weeks, and new growth should appear after 4–6 weeks.

Soil and Moisture Tips During Rooting

The right environment during rooting is key to preventing rot and encouraging healthy development.

• Use a well-draining mix such as cactus soil amended with perlite or pumice.

• Keep the soil lightly moist, not wet — mist instead of soaking.

• Place in a warm area (65–75°F / 18–24°C) with good airflow and indirect light.

• Avoid plastic humidity domes; succulents prefer drier air for rooting.

If leaves begin to wrinkle or fall off, adjust moisture levels or lighting conditions.

Aftercare Once Roots Develop

Once roots have formed, your cuttings will need gradual acclimatization to standard succulent care.

• Tug lightly on the stem after 2–3 weeks. Resistance signals root development.

• When rooted, transition to deeper watering every 10–14 days, allowing the soil to dry fully between waterings.

• Move the pot to its final location with bright, indirect light or gentle morning sun.

• Fertilize lightly after 4–6 weeks with a ¼ strength 10-10-10 balanced liquid fertilizer like this one.

Over time, the plant will begin to trail and fill in with new growth, forming a full and healthy appearance.

Can You Propagate in Water?

Yes — String of Dolphins can also root in water, although results vary.

• Take a cutting as described above.

• Remove lower leaves and place the stem in a jar of clean, room-temperature water.

• Position the jar in indirect sunlight.

• Replace the water every 3–4 days.

• Roots typically form in 2–4 weeks.

Once roots are 1–2 inches long, transplant into soil.

Plants rooted in water may require more time to adjust once potted.

Common Problems During Propagation

Even easy-to-propagate plants can run into occasional trouble. Here are the most common issues and how to fix them:

• Cuttings turning mushy: Caused by too much moisture or no callus formation. Always let stems dry out before planting.

• Leaves shriveling or dropping: Typically a sign of underwatering or too much direct sun. Mist more frequently or move to a shadier spot.

• No roots forming after 4 weeks: Often due to cold temperatures or insufficient light. Warm up the area and increase light exposure.

• Rotting after transplanting: Usually from heavy soil or overwatering. Improve drainage and reduce watering frequency.

Adjusting one or two care variables often solves the issue quickly.

Long-Term Care for New Plants

Once rooted, your String of Dolphins will enter a normal growth pattern with minimal maintenance.

• Water only when the top 2–3 inches of soil are dry.

• Provide bright, indirect light to retain compact, dolphin-like foliage.

• Fertilize during the growing season only (spring to early fall).

• Prune occasionally to encourage branching and fuller trailing habits.

With proper care, new plants will mature within 6–8 months and begin producing trailing stems ready for propagation all over again. See our guide String of Dolphins Care: How To Grow This Charming Succulent Indoors or Out.

Final Word

String of Dolphins propagation is both simple and satisfying — whether you’re looking to expand your collection or breathe new life into an older plant.

With just a few healthy cuttings, some patience, and the right environment, you can easily grow new cascades of this playful, sea-inspired succulent.

Use the steps outlined here, and your efforts will soon yield rows of dolphin-leaping vines perfect for pots, gifts, or hanging displays.