Mukdenia rossii syn. Aceriphyllum rossii – Hill Farm, Macalister, B.C. – May 21, 2014 Image: HFN
Perennial. Zone 4. Saxifragaceae. Native to Korea, Northern China and Manchuria, where it grows in cool deciduous forest and on rocky slopes and subalpine ravines. The name Mukdenia comes from the Chinese province of Shenyang, then called Mukden, while the specific name, rossii, is after a Scottish missionary John Ross* (1842-1915) who established one of the first Christian churches in the region.
Quietly beautiful in all stages of growth. I fell for this the first time I saw it in autumn-leaf mode, long after flowering, in a coastal garden. The silk-sheened foliage was flushed with crimson, but that was merely what initially caught my eye; on closer examination I saw that the structure and habit of the plant made it a perfectly self-contained woodland garden sort of clump former. A bit of research and a description of the starry white spring blooms merely confirmed my first impression that this was a Very Good Thing, and so I set off on my quest to obtain it for myself.
This proved much more challenging than I had anticipated. Though various coastal nurseries occasionally showed the deluxe cultivar ‘Crimson Fans’ on their stock lists, there never seemed to be one available on my infrequent visits. I did find one rather bedraggled specimen on an end-of-season sale table for a breathtaking $40, but couldn’t bring myself to buy it for that sum, not knowing if it would prove hardy for me. (All plant people are by nature gamblers of sorts, but, like most of us, I do have my limits!)
Then, ten years or so ago, I found Mukdenia rossii listed on Kristl Walek’s most excellent Gardens North perennial seed list. A half dozen tiny seedlings survived the rigors of the germination and growing out stage, and I was set. I mulled over a suitable placement for them, and settled on the front of the border on the west side of the house, an area shaded by trees in the afternoon, and well protected by snow from the house roof in winter. The plants approved, and settled in happily, to expand their clump modestly each season and to give me more and more spikes of their tiny white starflowers with every succeeding spring. There they are at the top of the post, and here they are in close-up mode.
Hill Farm – May 21, 2014. A closer look at the starry blooms will show this plant’s membership in the venerable Saxifrage family. Image: HFN
I occasionally consider stealing some divisions from my cherished little colony, but so far I have resisted that temptation. It is modestly thriving but is in no way outgrowing its allocated space; I think I will leave it well enough alone. Seed remains hard to come by, and I haven’t seen it on Kristl’s list recently. I have managed to germinate a few seedlings from my own plants, but as they are delicate things in the early stages I sadly lost them all before they reached transplanting stage – damping off, too hot a greenhouse, and a day’s missed watering during the busiest time of the nursery year spelled their various dooms. I shall try again, though, because this is something I would love to share with my fellow Cariboo gardeners.
So, on to the nitty gritty.
Mukdenia rossii forms a compact clump which expands by slowly creeping rhizomatous roots. Rosy-blushed, crowded bud spikes emerge in earliest spring a little before the foliage, and the budding stems and leaves grow a little day by day, until at last, in late April or early May, the first white stars appear. These add to the number day by day, until at last the branched panicles are drooping from their combined weight; the show lasts for weeks, well into June if we don’t have a heat wave. The flowers slowly fade to brown, and the aging seed heads may be left in place or clipped off if you are of the exceedingly tidy sort.
Foliage is broad, fan-shaped with serrated edges, and of a most attractive silken texture, with a lovely light-catching sheen. The leaves are well flushed with dark red upon emergence, and though this fades to a uniform green for the majority of the growing season, autumn again brings out the red tints, until the plants disappear under the snow.
Mukdenia appreciates humus-rich soil and a fair bit of moisture in the heat of summer, though it never droops. Afternoon shade is definitely appreciated; this can be grown under tree cover in a woodland setting.
Once established, bloom stems will reach a foot or so in height, with clumps expanding to 1 or 2 feet. Perhaps nicest in a colony, with several planted together, as it is grown in the University of British Columbia Botanical Garden, and, in a more modest way, my own shady border.
A gorgeous colony of Mukdenia rossii in full bloom, UBC Botanical Garden, Vancouver, B.C. – April 8, 2014. Image: HFN
UBC Botanical Garden – April 8, 2014 Image: HFN
I did eventually acquire a small start of ‘Crimson Fans’, but sadly it inadvertently spent a recent winter with the crown crushed under a brick which had tipped sideways – it (the brick) was meant to protect a promising hellebore seedling – and it (the mukdenia) was not looking at all well, so is now residing in a pot, being nursed back to health.
This is the one you will likely find if you are yourself scanning the more southerly nurseries. It is also sold under the original Japanese name, ‘Karasuba’. Ignore whatever the zone rating on the tag says – it might be a conservative Zone 6 or 7 – and give it a try. I would be confident to recommend it to at least Zone 4, or even Zone 3 if it can be guaranteed good snow cover. The red colour does fade by mid spring, after which it looks pretty much like the species type, but it is very pretty while it lasts.
Nice plant. Worth a try.
*I wondered if John Ross was also involved with botany in some way, but I found no mention of it in the few places I checked. There is this short biography, however, from the Biographical Dictionary of Chinese Christianity:
Born in northern Scotland, Ross served several Gaelic-speaking churches before leaving for China under the United Presbyterian Church in 1872. His ministry deeply touched two areas, Manchuria and Korea. By 1873 he had preached his first sermon in Chinese and had pioneered Manchurian work through wide itineration from his post in Shenyang (Mukden).
Known for his generous spirit toward Confucianism and Chinese ancestral rites, he supported the idea of a Chinese church that would not be a Western replica. In 1873, living on the northern border of a Korea still closed to outsiders, he met traders from the “hermit kingdom.” His growing interests produced the first Korean primer (1877) and grammar (1882) in English, the first history of Korea in any Western language (1879), and, under his direction, the first Korean translation of the New Testament (1887). Its unheralded distribution in Korea produced an authentic church there before Protestant missionary itineration began widely within the country. He retired to Scotland because of ill health in 1910 but continued to write and lecture.
Hill Farm Nursery 