Phedimus middendorffianus (Maxim.) 't Hart
Aizopsis middendorffiana subsp. arctuata, Aizopsis middendorfiana, Phedimus middendorffianus subsp. middendorffianus, Phedimus middendorfianus, Sedum aizoon subsp. middendorffianum, Sedum aizoon var. middendorffianum, Sedum hohenackeri, Sedum kamtschaticum subsp. middendorfianum, Sedum middendorffianum, Sedum middendorffianum var. diffusum, Sedum middendorfianum subsp. arcuatum, Sedum prostratum, Sedum sibericum, Sedum vagans
Phedimus middendorffianus, formerly known as Sedum middendorffianum, is a succulent that forms a cluster of many erect or suberect stems with fleshy green leaves. It spreads by creeping, branched rhizomes that become woody as they age. The stems branch near the base and grow up to 1 foot (30 cm) long. Leaves are up to 1 inch (2.5 cm) long and up to 0.2 inches (0.5 cm) wide, grooved, and with margins serrated in the upper half. Flowers are star-shaped, up to 0.4 inches (1 cm) across, yellow with orange or purple anthers, and appear in summer in clusters at the end of the stems.
The specific epithet "middendorffianus (mid-den-dorf-ee-AY-nus)" honors Alexander Theodor von Middendorff (1815-1894), a zoologist and explorer of Baltic German and Estonian extraction. Unfortunately, it is often incorrectly spelled "middendorfianus."
How to Grow and Care for Phedimus middendorffianus
Light: This light-loving plant will tolerate partial shade, but it prefers full sun and grows best in warmer environments. Plant P. middendorfianus in an area of your garden that gets at least 6 hours of sunlight a day.
Soil: This succulent thrive in any well-drained soil. Good drainage is critical for preventing root rot or fungal diseases.
Hardiness: P. middendorfianus tolerates frost and can stay outdoors when the temperature drops below freezing. It can withstand temperatures as low as -30 to 30 °F (-34.4 to -1.1 °C), USDA hardiness zones 4a to 9b.
Watering: The best way to water your P. middendorfianus is to use the "soak and dry" method. Get the soil completely wet, and then wait until the soil is dry before watering again.
Fertilizing: Feed with low-balanced fertilizer to keep your plant happy and healthy. Use a diluted dose of half the strength recommended on the package.
Repotting: Repot your plant when it outgrows its current pot by moving it out to a larger container to hold the plant better. Spring is the best time to repot P. middendorfianus. Make sure the soil is dry before you begin the repotting process.
Propagation: Like all members of the genus Phedimus, this succulent can be grown from seeds, division, or stem cuttings. Dividing your P. middendorfianus is the best method to propagate because it is easy and usually very successful. Divide in spring when new shoots are seen. P. middendorfianus is also easily propagated from cuttings. Sow seeds in spring in well-drained soil in a sunny position.
Learn more at How to Grow and Care for Phedimus.
Toxicity of Phedimus middendorffianus
P. middendorfianus can be mildly toxic to humans and animals.
Forms of Phedimus middendorffianus
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