Yes, you can grow string of dolphins outdoors during the warm months as long as you pick the right spot. The plant loves a bit of fresh air and bright light, but it has hard limits you need to respect.
A hanging basket of dolphins thrives on a shaded summer porch, putting out those little leaping leaves all season. Then one frosty night turns the whole thing to mush. That single contrast sums up the indoor-versus-outdoor question for this plant.
NC State Extension lists string of dolphins as a frost tender succulent that grows best in USDA zones 9 to 11. Outside of those warm zones, it cannot survive winter outdoors. Knowing your own hardiness zone tells you most of what you need to plan around. If you live somewhere with real winters, the plant becomes a houseplant for half the year and a porch plant for the rest.
Temperature is the other big factor. This plant does best with summer warmth of 70 to 80°F (21 to 27°C). Cool nights near freezing damage the leaves fast, and you will see them go soft and translucent within a day. Harsh midday sun scorches them just as quick, so the heat has to stay in the sweet spot for the plant to look its best.
Light placement makes or breaks your results. A covered porch works well, and so does any spot with bright shade and gentle morning sun. Skip the open afternoon sun, since direct rays bleach and burn the trailing stems. Filtered light keeps the color rich and the leaves plump. An east-facing wall or a spot under a patio cover gives the plant strong light without the punishing heat that builds up later in the day.
Bring your plant indoors well before the first frost or any night that dips near freezing. A single cold snap can kill an entire basket overnight.
Hardiness zones decide whether the plant can stay out all year or only visit for the season. In frost-free zones 9 to 11, you can leave it outside year-round with no trouble at all. Anywhere colder than that, treat the outdoor stay as a summer vacation and plan to bring it back inside. Most growers in cooler regions move their dolphins out around late spring and pull them in by early fall, well ahead of the first cold snap.
Move the plant to brighter light slowly so it does not sunburn. Set it out for an hour or two of soft light each day, then add more time over a week or so. This gradual transition lets the leaves toughen up before they face full outdoor brightness. Move a plant straight from a dim windowsill into open light and it can bleach in one afternoon. Those scorched leaves never get their color back, so the slow approach pays off.
Good outdoor succulent care comes down to a few steady habits through the warm season. Let the soil dry out between waterings, since the plant rots faster outside where it dries slower in humid air. Keep the basket out of pooling rain, and tip out any water that collects in the saucer. Watch the forecast for cold and check it twice a week as fall gets close. Bring the plant in once nights start dipping toward the low 40s, since that chill stresses it well before a true frost. Follow those steps and your dolphins will trail happily until you carry them back in for the winter.
Read the full article: String of Dolphins Care Guide
