Sedum alexanderi is an attractive, perennial succulent shrub that grows up to 30 cm (12 inches) tall. The leaves are light green or yellow (depending on the season), up to 8 cm long and up to 5 cm wide. The flowers are white with red markings in the apical third, especially near the margins, up to 2 cm wide and appear in winter on a branched stem up to 30 cm (12 inches) tall.
Scientific Name: Sedum alexanderi Eggli
Synonyms: Sedum platyphyllum
How to grow and maintain Sedum alexanderi:
It requires full sun to light shade. Two to four hours of afternoon sunlight is best for the plant. South facing windows are ideal or west, north facing will not encourage growth.
It grows best in Well-draining soil. Use 2 parts potting soil, 2 parts coarse sand, 2 parts peat and 1 part perlite or crushed charcoal.
It Prefers ideal temperature between 65°F – 75°F / 18°C – 25°C during summer. Temperature no lower than 50 °F – 55°F / 10°F – 12.7°C is best. It does best in hotter conditions. Try not to keep the plant outside in freezing temperatures.
Sedum plant needs more water in the spring and summer, but you can allow the topsoil to become slightly dry between each watering. During the winter season, reduce watering.
Fertilize once a month with a diluted liquid fertilizer or use a slow releasing nitrogen-based fertilizer, during the spring and summer season.
It can be easily propagated by stem and leaf cuttings. you can break off one of the stems and push it into the ground where you would like to grow it. The stem will root very easily. Or Cut off leaves from the stem, let them dry, and then place the cutting into the soil. Keep the potting soil moist until the cutting begins to grow.
Re-pot your plant every year or every two years. As the plant grows, you should move it to a wider pot so the new stems and roots have enough room to develop. Repotting is best done during spring.
Pests and Diseases:
Sedum plant has is no serious pests or diseases issues. Watch for aphids and flies. You can dispose of them by spraying insecticidal soap or neem oil over the foliage.