The genus Rhodiola, treated here as distinct, is included in Sedum by some authors.
The plants treated here as Rhodiola integrifolia and Rhodiola rosea L., are part of a difficult polymorphic complex growing from the arctic to cool-temperate zones of North America and Eurasia, and also of high mountains further southward. Some authors have included them all in Rhodiola rosea [or Sedum rosea (L.) Scop.], often with subspecies or varieties[
Rhodiola alaskana Rose
Rhodiola neomexicana Britton
Rhodiola polygama (Rydb.) Britton & Rose
Rhodiola rosea integrifolia (Raf.) Jeps.
Rhodiola rosea neomexicana (Britton) H.Jacobsen
Sedum alaskanum (Rose) J.K.Henry
Sedum frigidum Rydb.
Sedum integrifolium (Raf.) A.Nelson
Sedum polygamum Rydb.
Sedum rosea alaskanum (Rose) A. Berger
Sedum rosea aleuticum Fröd. ex Hultén
Sedum rosea neomexicanum (Britton) A.Berger
Sedum rosea polygamum (Rydb.) Fröd.
Rhodiola integrifolia is a herbaceous perennial plant producing a cluster of stems 3 - 15cm tall, occasionally to 50cm[
Western N. America - Alaska and Yukon, south to California and New Mexico
Cliffs and rocky slopes, alpine meadows, tundra; at elevations up to 2,000 metres, occasionally to 4,000 metres[
Rhodiola integrifolia is an extremely cold-hardy plant, tolerating temperatures down to around -40°c when dormant[
Prefers a fertile well-drained soil in a sunny position[
]. Established plants are drought tolerant[
This species has mostly dark red flowers, sometimes yellowish at the base[
]. All members of this genus are said to have edible leaves, though those species that have yellow flowers can cause stomach upsets if they are eaten in quantity[
The plant is eaten fresh, soured or in oil[
The root is used for food[
The red plant tops are used to make a tea-like beverage[
The roots are chewed and the juice spat out to treat sores in the mouth[
Seed - surface sow in spring in well-drained soil in a sunny position in a greenhouse. Do not allow the soil to dry out. Prick out the seedlings into individual pots when they are large enough to handle, and grow them on in the greenhouse for their first winter. Plant out in early summer of the following year.
Division in spring or early summer. Very easy, larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.