Lighting: Senecio rowleyanus prefers a well lit position free from cold draughts. Give these plants bright light with some hours of direct sunlight daily.
Water: Keep your String of Pearls plant lightly moist during the growing season (spring through fall). Cut back on water in winter, watering just enough to prevent the soil from drying out. Give it a good drink, but take care not to overwater. This succulent will not tolerate soggy soil.
Soil: Use a well-aerated soil that retains water but drains well. Cactus potting mix also works well. Add horticultural sand, perlite, or pumice if the soil becomes too heavy and compact.
Temperature: Warm spring through fall (70-80°F/21-27°C). In winter, cool (55-60°F/13-16°C). It can take the heat, but keep it shaded from the hot midday sun in summer if you want to move String of Pearls outdoors for the warm months.