How to Grow Necklace Cactus
Wikimedia Commons
Necklace Cactus
Rhaphidophora tetrasperma × Selenicereus anthonyanus (or similar trailing succulent)
succulentNecklace cactus is a trailing succulent with distinctive round, coin-shaped stems that resemble beads on a string, creating an attractive draping appearance. It is a low-maintenance houseplant that produces delicate white or pale pink flowers when mature. This plant is perfect for hanging baskets, shelves, or as a trailing accent in indoor gardens.
When should you plant Necklace Cactus in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Necklace Cactus timeline · Pittsburgh, PA (Zone 6b)
-
Plant Necklace Cactus
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Necklace Cactus
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Necklace Cactus dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 10b-11 for outdoor cultivation; grown indoors year-round in cooler climates
Sign up free to see if Necklace Cactus grows in your zone — and get a personalized planting timeline.
Get my Necklace Cactus timeline →Growth Stages
Propagation
2-4 weeksSmall stem segments or individual beads are placed on moist soil to establish roots.
Keep soil lightly moist but not wet. Provide bright, indirect light. Root development takes 2-4 weeks.
Establishment
4-8 weeksYoung plants develop root systems and begin producing new stem segments.
Maintain bright light and allow soil to dry between waterings. Gradually acclimate to normal watering schedule.
Vegetative Growth
Ongoing (several months to years)Plant produces elongated trailing stems with characteristic round, bead-like segments spaced along the length.
Water when soil is dry. Fertilize monthly during spring and summer with diluted succulent fertilizer. Support with hanging basket or shelf.
Flowering
Several weeks, intermittentMature plants produce small, delicate white, pink, or pale yellow flowers that bloom intermittently.
Flowers may appear with no special triggers, though cooler winter dormancy and consistent care promote blooming. Flowers are often night-blooming and fragrant.
Maintenance
Long-term (plant can live for many years)Established trailing plant continues producing new beads and occasional flowers with minimal intervention.
Pinch back or trim leggy growth to encourage bushiness. Remove any dead or diseased segments. Repot every 1-2 years if needed.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Spray with insecticidal soap or neem oil. Remove with rubbing alcohol on a cotton swab. Isolate affected plant.
-
Increase humidity with misting. Use neem oil or insecticidal soap. Ensure good air circulation.
-
Remove manually with a soft brush or cloth. Treat with neem oil or horticultural oil spray.
-
Allow soil to dry completely between waterings. Repot in fresh, dry soil if roots are mushy. Improve drainage.
Uses
Indoor Trailing Houseplant
HouseholdNecklace cactus is an excellent choice for hanging baskets, shelves, and trailing displays in homes and offices. Its unique beaded appearance and low-maintenance nature make it popular for modern interior décor. [source]
Propagation & Plant Propagation
CraftThe plant propagates extremely easily from individual bead segments, making it ideal for plant propagation projects, sharing with friends, or creating a collection of multiple plants. [source]
Pollinator-Friendly Flowers
WildlifeWhen flowering, necklace cactus produces delicate blooms that attract pollinators such as bees and small flying insects, supporting beneficial insect populations in indoor gardens. [source]
Air-Purifying Succulent
HouseholdLike most succulents, necklace cactus produces oxygen during the day and helps freshen indoor air, making it a beneficial addition to living spaces. [source]
Low-Maintenance Décor
HouseholdThis drought-tolerant plant requires minimal water and attention, making it ideal for busy plant lovers, offices, and environments where consistent care is difficult. [source]
Harvest Tips
Necklace cactus is grown for ornamental foliage and flowers rather than harvest. Propagate by cutting 2-3 bead segments from healthy stems and placing them on moist succulent soil. Cuttings root readily within 2-4 weeks.
Fun Facts
- 🌱 Necklace cactus earned its common name from the distinctive round, bead-like segments that line its trailing stems, resembling beads strung on a string.
- 🌱 The plant is often sold under various common names including 'String of Beads' and 'Beads on a String,' though it is technically a succulent rather than a true cactus.
- 🌱 Necklace cactus flowers are often fragrant and may bloom primarily at night, releasing their subtle sweet scent in darkness—a pollination strategy for nocturnal insects.
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Necklace Cactus planting timeline
Tell us your zip code and we'll calculate exactly when to start Necklace Cactus seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Necklace Cactus timeline →