Mukdenia, Mukdenia rossii

Mukdenia mixes with other perennials and a small spruce.Mukdenia mixes with other perennials and a small spruce.

Mukdenia (=Aceriphyllum) rossii is one of just two species in this genus of herbaceous perennials native to rocky slopes and ravines of eastern China and Korea that commemorates the ancient city of Mukden, the Chinese capital city of the Manchu dynasty. Hardy in zones 4 to 8 (possibly to zone 3), this distinctive looking plant with a common name of mukdenia is in the saxifrage family (Saxifragaceae) and superficially resembles the distantly related North American genus Heuchera.

Mukdenia forms a small mound of thickly textured, glossy foliage up to a foot tall and 1 to 2 feet wide, spreading slowly over time by short creeping rhizomes. The rounded, palmate leaves up to 5 inches across are lobed and dentate. The fan-shaped leaves emerge a deep coppery-bronze in spring, becoming medium to dark green in summer with reddish color creeping inward from the edges by the end of the summer. Under ideal conditions the leaves become a rich burgundy color with reddish orange highlights on their margins by fall. The plants are deciduous, with the foliage declining in late fall or early winter and new leaves emerging from the crown the following spring.

The foliage emerges in early spring (L) to form clumps (LC) or palmate leaves (R) that turn color in late summer (R).

In spring tiny white star-shaped flowers are produced soon after leaves emerge from rosy-blushed, crowded bud spikes. The slender, leafless, dense, branched panicles are held well above the foliage and remain intact (if not deadheaded). The flowers fade to pale pink and eventually to brown after a few weeks and are followed by inconspicuous brown fruits.

The small white star-shaped flowers (R) emerge in spring (L) in dense panicles (C).

Mukdenia in a shady spot under birches at Olbrich Botanical Gardens, Madison, WI.

This ornamental plant is often used as a ground cover with several planted together, or as a fall accent plant in woodland gardens or the front of beds and edges of shady borders. It combines well with Japanese forest grass (Hakonechloa macra) for contrast in texture, habit and, especially the gold or variegated varieties, color. It also mixes well with blue or gold hostas, wild gingers (Asarum spp.) and smaller ferns. This plant can also be grown in containers (but will need some winter protection in colder climates, such as moving into an unheated garage).

Mukdenia does best in light shade. Here ‘Bloodgood’ Japanese maple will echo the leaf color later in the season.

Mukdenia grows best in afternoon shade in moist, fertile well-drained soil, although it can tolerate full sun in cooler regions, especially where the soil remains moist. Although it will grow in more dense shade, the attractive red fall color will not be as intense. It has few insect or disease problems, although slugs can be a problem in moist conditions. It is not favored by deer or rabbits. The old foliage of this low maintenance plant is best cleaned up in early spring before it resumes active growth for the season. It can be propagated by division in spring, best done just before the leaf buds expand. Seeds should be sown in fall for stratification over the winter.

The most commonly offered mukdenia is the cultivar ‘Karasuba’, also marketed as Crimson Fans™, a selected form from Japan, with larger leaves more pronounced crimson red color along the leaf tips throughout summer than the species. ‘Starstream’ is a variegated form.

– Susan Mahr, University of Wisconsin – Madison

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  1. I like the fact that they change color through the season so would interest in the garden for a long time. Not sure that I would have a shady enough spot for them. I may try one and see how it goes.

  2. Love that it is deer and rabbit resistant. Always looking for flowers that like the south side of house. Like that it dies back and comes back from the crown.

  3. I need some shade plants and I like the flowers on these. I will be investigating, where to purchase some.

  4. Thanks for the article! I have “Japanese Forest Grass” growing in a partial shade area and the Mukdenia would complement it well. Like the hardiness of it also.

  5. Always looking for a different shade loving plant. So, this article was helpful. Is it available in Wisconsin? Also, wondering if it can be somewhat invasive?

  6. Very interesting plant. I have a lot of shade in my yard along with shade gardens. This plant would be an excellent addition to my gardens.

  7. I lived reading about this plant. I have been looking for a shade loving plant to plant in a shaded area in my backyard. I am certainly going to try it. Thanks

  8. Always looking for new shade plants for my flower bed! This is just my style! Thank you. Linda Kelly, MG Intern, St Croix County

  9. Mukdenai definitely looks like an interesting plant to have. I was surprised to see that it would be hardy for this area.

  10. Where can I get this plant? I’d like to try growing in NE Wisconsin in a sheltered garden.

  11. I am not familiar with the Mukdenia species and I can’t say I noticed them when I visited Olbrich gardens. I think the flowers are adorable and the fall color lovely. It is certainly a plus that they are largely pest and animal resistant. The articles states that this plant is from rocky slopes and ravines. Is this at altitude? I am wondering how altitude may affect plant growth? Thanks.

  12. It’s nice to know that it can grow amid rocks and the foliage is quite lovely.

  13. Mukdinia reminds me of astilbe. I’m always on the look out for more shade loving plants that have some color.

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