- Light should be bright and indirect.
- Pot should be shallow, gritty, and able to drain.
- Water only after a real dry-down.
- Propagation uses healthy trailing stem cuttings.
String of pearls looks delicate, but the care problem is usually not mystery. The beads store water, the roots stay near the surface, and the plant wants light without being cooked through a hot window.
NC State Extension lists the current botanical name as Curio rowleyanus, with Senecio rowleyanus still common in older books and plant tags. Wisconsin Horticulture notes that the plant is native to dry parts of South Africa and is often grown in hanging baskets so the stems can trail.
Can string of pearls grow indoors?
Yes. String of pearls can grow indoors when it has bright indirect light, excellent drainage, and a potting mix that dries between waterings. It is best in a hanging basket, shelf planter, or shallow dish near a bright window.
It is not a good plant for a dark bathroom, a no-hole cachepot, or a spot where pets can chew the dangling stems. If those are your conditions, choose a sturdier plant from the beginner indoor plants list instead.
String of Pearls Overview
| Common name | String of pearls, string of beads, string of peas, rosary vine |
|---|---|
| Botanical name | Curio rowleyanus; still often sold as Senecio rowleyanus |
| Family | Asteraceae |
| Plant type | Trailing succulent vine grown indoors as a hanging or shelf houseplant |
| Mature size | NC State lists about 1 to 2 ft. high and 1 to 3 ft. wide/long |
| Sun exposure | Bright indirect light indoors; partial shade or morning sun outdoors after acclimation |
| Soil type | Fast-draining cactus or succulent mix with grit, pumice, perlite, or similar mineral material |
| Bloom time | Summer; flowers are uncommon indoors |
| Flower color | Small white flowers with a cinnamon-like fragrance |
| Hardiness zones | USDA 9b to 11b for outdoor culture, according to NC State |
| Native area | Dry areas of South Africa, including the Cape Provinces |
| Toxicity | Toxic to humans and pets; sap can irritate skin |
Is string of pearls hard to care for?
String of pearls is not hard if you can give it bright light and a fast-drying pot. It becomes difficult in dim rooms, sealed planters, heavy soil, or homes where dangling vines get touched, bumped, or chewed.
The plant is less forgiving than a ZZ plant or snake plant because its stems rot where wet soil touches the beads. A missed watering may wrinkle the pearls; repeated wet soil can collapse stems.
Myth vs reality: "Succulent" does not mean ignore it for months. It means the plant stores water and needs air around the roots. Dry-down is useful; prolonged shriveling is stress.
What light does string of pearls need?
String of pearls needs bright indirect light indoors, with gentle direct sun only when the plant has been acclimated. Morning sun is usually safer than hot afternoon sun through glass.
NC State says indoor plants flourish in bright, indirect sunlight. Wisconsin Horticulture adds that outdoor summer moves need gradual acclimation to prevent sunburn, protection from excess rainfall, and a move back indoors before frost.
| East window | Usually a strong indoor spot because morning sun is gentler. |
|---|---|
| Bright south or west window | Use a sheer curtain or set the plant back if beads scorch or bleach. |
| North window | Often too weak unless the room is unusually bright or a grow light supports it. |
| Outdoor summer shelf | Acclimate slowly, avoid heavy rain, and bring indoors before cold nights. |
If stems stretch and the pearls become smaller with wider gaps, improve light before adding fertilizer. Weak light also slows soil dry-down, which makes overwatering easier.
How often should you water string of pearls?
Water string of pearls after the potting mix dries, then water thoroughly and let every bit of excess drain away. The exact interval depends on light, pot size, temperature, season, and soil mix.
In a bright warm room, a shallow terracotta pot may dry quickly. In a deep plastic pot or dim winter window, the same plant may stay damp far longer. Check the mix and the beads instead of following a fixed weekly schedule.
- Lift or feel the pot so you learn its dry weight.
- Check below the surface, not just the top crust.
- Water when the mix is dry and the pearls are still mostly firm.
- Soak evenly until water exits the drainage hole.
- Empty the saucer or cachepot immediately.
There is a useful nuance here. Wisconsin Horticulture says to let the medium dry completely between waterings and water when leaves begin to look a bit shriveled. NC State also warns not to let the plant completely dry out between watering. In real homes, the safest rule is: let the mix dry, but do not leave the plant bone-dry until many pearls collapse.
What soil and pot should string of pearls use?
Use a gritty, fast-draining cactus-style mix in a shallow pot with drainage holes. A small root system in a deep wet pot is one of the fastest ways to lose string of pearls.
Wisconsin Horticulture specifically recommends a shallow container because string of pearls does not produce an extensive root system. Clay can help the mix dry faster than plastic or glazed ceramic, but drainage holes still matter more than material.
| Best setup | Shallow terracotta or clay pot, drainage hole, gritty succulent mix. |
|---|---|
| Risky setup | Deep decorative pot, dense peat-heavy mix, no drainage, water trapped in a saucer. |
| Repotting size | Move up only slightly. Extra soil volume dries slowly around small roots. |
| Stem position | Keep beads from sitting on constantly wet soil; wet contact points rot easily. |
Use the houseplant drainage guide, soil mix guide, and pot size guide if your plant declines after repotting.
What temperature and humidity does it need?
String of pearls prefers warm growing conditions and a cooler, drier winter rest. It does not need high humidity and should be protected from frost.
NC State lists warm summer temperatures around 70 to 80 degrees Fahrenheit and cooler winter temperatures around 50 to 60 degrees Fahrenheit. Most homes are fine if the plant stays away from cold glass, heaters, and air-conditioning blasts.
Do not mist string of pearls to "add humidity." Misting leaves and stems without improving root-zone drainage can encourage rot. If your room is dry, focus on good light and correct watering first; use the houseplant humidity guide for plants that actually need humid air.
Should you fertilize or prune string of pearls?
Feed lightly in active growth and prune to remove bare, dead, or overly long stems. Do not use fertilizer to compensate for weak light or poor drainage.
Wisconsin Horticulture suggests light spring fertilizing or periodic repotting. Indoors, a diluted houseplant or succulent fertilizer during spring and summer is enough for a healthy plant. Skip feeding in winter or when the plant is stressed.
- Trim bare or dead strings with clean scissors.
- Propagate healthy cuttings instead of throwing them away.
- Rotate the pot so one side does not thin out.
- Remove fallen beads from wet soil.
- Feed lightly only when light and growth are good.
Can you propagate string of pearls?
Yes. Stem cuttings are the most reliable way to propagate string of pearls. Use healthy strings with several nodes, because roots form where nodes touch the potting mix.
NC State recommends 3 to 5 inch stem cuttings with nodes covered by potting mix. Wisconsin Horticulture gives similar guidance and notes that leaf-only propagation is slower and less reliable.
- Cut a healthy 3 to 5 inch stem section.
- Remove a few beads from the bottom nodes.
- Lay or pin the stem onto barely moist gritty mix.
- Lightly cover the exposed nodes.
- Keep the surface just slightly moist until roots form.
- Increase dry-down once the cutting is established.
For general cutting setup, see how to propagate houseplants from cuttings. The main difference is that string of pearls cuttings should not sit in heavy wet soil while they are rootless.
Why is string of pearls dying?
String of pearls usually declines from overwatering, underwatering, inadequate light, sudden sunburn, root rot, or pests such as mealybugs and aphids. Diagnose the beads, stems, and soil together.
| Mushy stems near soil | Likely rot from wet soil, poor drainage, or beads sitting on damp mix. |
|---|---|
| Shriveled pearls | Can mean dry soil, damaged roots, or rot that prevents water uptake. Check the mix before watering. |
| Yellow or gray leaves | NC State notes this can be linked with insects; also check light and wet roots. |
| Bleached or crispy beads | Sudden direct sun or heat through glass may scorch the plant. |
| White cottony clusters | Check for mealybugs on nodes and tight stem areas. |
Start with the root-zone checks in root rot recovery, then use yellow leaf diagnosis, leaf drop diagnosis, and mealybug control if those symptoms match.
Is string of pearls toxic to cats, dogs, and people?
Yes. NC State lists string of pearls as toxic to humans and pets, with low-severity poison characteristics. Keep it away from cats, dogs, children, and anyone likely to touch sap and then rub their skin or eyes.
NC State notes ingestion can cause vomiting and diarrhea, and sap can cause skin irritation or rash. Wear gloves if you are sensitive, wash hands after pruning, and hang the plant where pets cannot reach the trailing strings.
If you need safer plant options for a pet home, use the pet-safe houseplants guide instead of placing a toxic trailing plant at bite height.
A simple string of pearls care routine
Put string of pearls in bright indirect light, use a shallow draining pot, let the mix dry before watering, and propagate healthy stems before the older plant thins out. That routine prevents most failures.
- Use a shallow pot with drainage holes.
- Choose gritty succulent mix.
- Give bright indirect light or gentle morning sun.
- Water by dry-down, not by calendar.
- Empty every saucer or cachepot after watering.
- Move outdoors only after gradual acclimation.
- Take cuttings from healthy stems before bare sections spread.
- Keep all strings away from pets and children.
String of pearls look-alikes to know
Many "string of" succulents are related plants, not true types of string of pearls. They can share bright-light and fast-drainage needs, but leaf shape helps you know what you bought.
String of bananas
String of bananas is commonly sold as Curio radicans or Senecio radicans. The leaves are curved like tiny green bananas rather than round beads.
Choose it if you like the trailing look but want a leaf shape that is easier to tell apart from true string of pearls.
Photo: KaitM42 / Wikimedia Commons, CC BY-SA 3.0; cropped.
String of watermelons or beads
This look-alike is often seen as Curio herreanus or Senecio herreianus. The beads are more oval or watermelon-like, often with a visible translucent stripe.
Wisconsin Horticulture notes that plants with elongated striped round leaves may be confused with string of pearls in the trade.
Photo: Sreifa / Wikimedia Commons, CC BY-SA 3.0; cropped.
Buying note: Do not buy only by the nursery label. Round beads point to true string of pearls; curved bananas and elongated striped beads are related trailing succulents with similar, but not identical, identity.
Frequently asked questions
Does string of pearls need direct sun?
It needs bright light, but harsh direct sun can scorch it if the plant is not acclimated. Gentle morning sun or bright filtered light is usually safer indoors.
Why are my string of pearls shriveling?
Shriveling can mean the mix stayed dry too long, but it can also happen when roots rot and cannot take up water. Check the soil moisture and stem bases before watering again.
Should string of pearls be watered from the bottom?
Either top or bottom watering can work if the mix gets evenly hydrated and then drains fully. The bigger issue is not leaving the pot sitting in water afterward.
Can string of pearls live in a bathroom?
Usually no, unless the bathroom is very bright and the pot dries well. String of pearls does not need steamy humidity and can rot in damp, low-light rooms.
How long does string of pearls live indoors?
Older plants often thin or die back after a few years. Take stem cuttings from healthy growth so you can renew the plant before the main pot declines.
Sources
The sources below support the botanical name, overview table, light, water, shallow-pot guidance, propagation notes, toxicity guidance, and image-license details in this article.
- North Carolina Extension Gardener Plant Toolbox: Curio rowleyanus
- Wisconsin Horticulture: String of Pearls, Senecio rowleyanus
- University of Georgia Extension: Growing Indoor Plants with Success
- Wikimedia Commons: Senecio rowleyanus potted.jpg
- Creative Commons Attribution 2.0 license
- Wikimedia Commons: String of Bananas2.JPG
- Wikimedia Commons: Senecio herreianus2.JPG
- Creative Commons Attribution-ShareAlike 3.0 license
