How to Care for String of Pearls | Keep Your Plant Thriving

String of Pearls needs bright, top-down light, very infrequent watering, and fast-draining soil to avoid the root rot that kills most indoor specimens.

That one beautiful, trailing succulent you brought home is actually a pro-level test: give it the wrong light or too much water, and the pearls yellow, drop, and the pot goes bald fast. But the real rules are simple once you know what this plant actually wants. It is not a low-light houseplant. It is a sun-loving succulent from dry South Africa that happens to trail. Here is how to keep the strings long, the pearls plump, and the top of the pot full instead of bare.

The Two Most Important Rules: Light and Soil

Everything else flows from these two. First, light must come from directly above the pot. If the plant sits on a shelf with light only hitting the sides, the top of the soil goes bald while the trailing strands get leggy. Aim for 4 to 6 hours of direct morning sun every day, with bright indirect light the rest of the time. A south- or west-facing windowsill works. Prolonged midday sun can scorch the pearls, so pull it back an inch or two if you see burning. Second, the soil must drain fast. Use a standard succulent or cactus mix, or amend regular potting soil with perlite, coarse river sand, or pumice. The pot must have a drainage hole — ideally unglazed terra cotta, which wicks extra moisture away from the shallow roots. Plant the stems so the pearls sit even with or slightly above the pot’s rim; burying them is a fast track to rot.

Watering: Let the Pearls Tell You When

Overwatering is the #1 killer. The safest rhythm: water thoroughly only when the soil feels nearly dry or when the pearls themselves look slightly shriveled and the little “windows” on the surface close up and look indented. In spring and summer, that usually lands at every 2 to 3 weeks. In fall and winter, stretch it to every 3 to 4 weeks or even monthly. When you do water, soak the pot from the top until water runs out the hole, or set the pot in shallow water for 20 to 60 minutes (bottom watering). Either way, let the pot drip dry completely afterward — never let it sit in standing water. Use lukewarm filtered or rainwater if you can; the minerals in tap water can irritate the pearls over time.

Light, Temperature, and Humidity for Healthy Growth

Ideal temperatures sit between 65 and 80°F (21–27°C) during the active growing season, with a cooler rest period around 55–60°F (13–16°C) in winter. Low humidity is what this plant evolved for — do not mist it. Misting encourages fungal rot on the pearls. Outdoors, it thrives year-round in USDA Zones 9 through 12. Indoors, a spot where the air is not stuffy or humid (away from the bathroom or kitchen steam) will keep the plant happiest. Trails can reach 24 to 36 inches long with good care.

Fertilizing, Propagating, and Common Mistakes

Fertilize lightly — once a month during spring and summer with a balanced water-soluble fertilizer (like a 5-10-5) diluted to half strength. Skip fertilizing entirely in winter. To propagate, take 4-inch stem tip cuttings in spring or summer, lay them on moist soil, and wait until roots form about an inch long before potting them up. The most common mistakes to avoid: overwatering (the surest way to rot), recessed planting (causes top balding), misting (invites fungus), and using cold water (shocks the roots). The plant is generally considered non-toxic, though it is always smart to keep it away from pets and children who might nibble.

Getting the pot right makes every other step easier. If you are ready to repot, check our tested roundup of the best pots for String of Pearls — the right container plus drainage is half the battle.