Yatsude: The Japanese Shade Shrub Behind the Houseplant Called Fatsia
Many people outside Japan know this plant as a houseplant: Fatsia japonica, Japanese aralia, with big glossy leaves like an open hand. In Japan it is an ordinary garden shrub called yatsude. It is planted by the front door to keep bad luck out, and it flowers in November, when almost nothing else in the garden does.
We are a small tree care and landscape business in Mie Prefecture, central Japan. We meet yatsude in shady corners of our clients' gardens and in the woods we look after. This page is about the plant as it lives here, outdoors, in its home country.
A native of Japan's warm coast
Yatsude grows wild in Japan. The Pharmaceutical Society of Japan describes its range as the Kanto region down to Okinawa, mostly in coastal woods in warm areas. The Missouri Botanical Garden lists its native range as Japan and Korea.
It is an evergreen shrub of the ivy family, Araliaceae. The Pharmaceutical Society of Japan gives its height in Japan as about 2 to 3 metres. The Missouri Botanical Garden notes it can grow to about 16 feet (around 5 metres) in its native habitat, but usually stays nearer 6 feet when grown indoors.
Eight hands that are rarely eight
Yatsude means eight hands. The Pharmaceutical Society of Japan explains that the leaves are actually cut into seven to nine lobes. Eight is a lucky number in Japan, and the word can also simply mean many. So the plant got a lucky name, not an exact count.
The Missouri Botanical Garden notes that the genus name Fatsia comes from a Latinised version of an old or misheard Japanese name, fatsi. In other words, the name that gardeners around the world use today began as an attempt to write down a Japanese word.
The tengu's fan
Yatsude has another name: tengu no hauchiwa, the feather fan of the tengu. Tengu are long-nosed mountain spirits in Japanese folklore, and they are often shown holding a fan that can raise great winds.
The Pharmaceutical Society of Japan writes that people believed the tengu's fan drove away disease and evil, and that this is one reason yatsude came to be planted in gardens. You still see it beside entrances and gates for this reason.
The same society adds a practical side. After the Great Kanto Earthquake of 1923, aerial photographs showed green trees still standing among burned houses. Thick evergreen leaves hold a lot of water, and research on how trees catch fire has shown that they resist burning. The society notes that yatsude, with its large, thick leaves, is reported to be one of these fire-resistant plants. In the crowded towns of the Edo period, people planted such evergreens to keep a neighbour's fire from reaching their own house. A charm against misfortune may also have been a firebreak.
A flower for the end of the year
Yatsude flowers from about November to December. Small white flowers gather into balls, and the balls stand above the leaves in a large branching cluster.
The botanist Yoshio Hada of Okayama University of Science describes it well. Yatsude flowers in sunny spots through autumn and winter, one after another for a long time, and on fine days flies and other insects crowd around it. Nectar comes from a disc at the base of the style. He notes that young flowers seem to offer pollen first and take pollen later, a pattern called protandry, which helps a flower avoid pollinating itself.
Most plants have finished by then, so yatsude has the few active insects almost to itself, and Hada notes that it gives them valuable nectar late in the year. Small black berries follow.
In the Missouri Botanical Garden's notes, Fatsia grown indoors rarely flowers or fruits. If you only know it as a houseplant, you may never have seen this side of it.
Shade is its home
In Japan yatsude is the classic plant for shade. A popular Japanese gardening guide from NHK Publishing says it grows well even where it gets only about two hours of morning sun. In our work, we see it staying deep green beside north-facing doors and in the shadow of buildings, where little else looks healthy.
It is also tough. Once it settles in, it needs little care. We only thin out crowded stems now and then, to let light and air back into the plant.
One note of care: a 1999 study in the journal Contact Dermatitis looked at allergens in yatsude and its relatives, and its sap is known to cause skin rashes in sensitive people. We wear gloves when we prune it.
Yatsude in the woods we look after
At a temple in Kameyama, Mie, we have been thinning a dense bamboo grove on a slope. In October 2024, our records show young yatsude spreading on the forest floor, together with aucuba, hornbeam seedlings, myoga ginger and aspidistra.
For us, this was a good sign. Under thick bamboo, almost nothing grows. When more light reaches the ground, the native shade plants of a Japanese wood come back first, and yatsude is often among them.
Common questions
Is Fatsia japonica the same as yatsude? Yes. Yatsude is the Japanese name for Fatsia japonica, known in English as Japanese aralia, paperplant or fatsi.
Why are there no flowers on my indoor Fatsia? According to the Missouri Botanical Garden, plants grown indoors rarely flower or fruit. Outdoors in mild climates, it flowers in late autumn.
Is it hardy outdoors? The Missouri Botanical Garden lists it as winter hardy in USDA Zones 8 to 10. In Britain it holds the Royal Horticultural Society's Award of Garden Merit.
Does it really have eight lobes? Rarely. Most leaves have seven or nine. The name comes from the lucky number eight.
A plant that stands at the door
Yatsude has been asked to do many jobs in Japan. Guard the door. Slow a fire. Feed the last insects of the year. Fill a dark corner of the garden with green.
It does all of these quietly, in places most people walk past. Next time you see a Fatsia on a windowsill, remember that at home it is an outdoor shrub, flowering in the cold.
