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Volume 8, Issue 8 | August 2021
Tokachi Millennium Forest
by Dan Pearson with Midori Shintani
Reviewed by Tracy Mehlin

book cover
I have always wanted to travel to Japan to experience the bustling energy of Tokyo and the serenity of ancient Buddhist temples in Kyoto. Now after reading about Tokachi Millennium Forest I know I have to include the northern island of Hokkaido in my itinerary. Why did the owner of a private parcel comprised of second growth forest and former agricultural fields hire a British garden designer? Because the lofty goal of creating a carbon sequestering ecological park that would be sustainable for 1,000 years, while also charming urban Japanese visitors required cross-cultural collaboration. Designer and author Dan Pearson's expertise is creating ecologically sensitive, naturalistic landscapes. He worked with Japanese landscape architect Fumiaki Takano to fulfill the vision of site owner and newspaper magnate Mitsushige Hayashi starting in 2000. In a nutshell, Hayashi's vision is to rekindle the visitors' connection to nature in order to instill an ethic of environmental responsibility and love for the mountains and forests. Head gardener and co-author Midori Shintani – profiled in Jennifer Jewell's The Earth in Her Hands – joined the team in 2008.

The book is elegantly designed with beautiful color photographs. The opening chapters relay how Pearson first traveled to Japan and how he was introduced to the project. It includes a brief history of the island, mountains and forest, and the reason behind Tokachi Millennium Forest. Pearson writes the main body of text while Shintani contributes essays on Japanese culture and how the culture is manifested at Tokachi. Pearson conveys high level design concepts such as sense of place and ecology, purpose and mission. He also includes very specific horticultural details such as how the native, yet aggressive Sasa bamboo is cut back in the forest every spring in order to give other native plants a chance to regenerate.

The following chapters describe each of the park's main regions, such as the Forest or the Earth Garden with its waves of grassy, sculpted landforms that relate to the looming mountains. The Productive Garden contains vegetables, herbs and fruits for the café as well as roses to delight visitors. Native flowers mix with carefully selected cold hardy perennials from temperate regions of the world in the Meadow Garden. Pearson and Shintani continue to meet for a week every year to discuss and plan maintenance strategies and required edits. The editing process means perennials that are too dominant either get deadheaded so seeds don't spread or potentially removed entirely, while less vigorous or short-lived plants are encouraged to reseed or are propagated and replanted the following spring. For example, Thermopsis lupinoides was edited out while Verbascum 'Christo's Yellow Lightning' was added later. I question how the complex, perennial-filled Meadow Garden will be sustainable for 1,000 years given the work required to keep it looking presentable through the short growing season, but I am eager to see it in person. It must be magnificent to walk through the flower-filled Meadow with the mountains framing the scene. The book concludes with a complete list of plants used in the Meadow Garden with notes on which ones failed to thrive or were removed for being too dominant.

Editor's note: keep an eye on the Miller Garden website for news about this year's Miller Lecture, which will be an online event featuring Dan Pearson.
Virtual exhibit: Northwest Nikkei by Michelle Kumata
Moon Viewing by Michelle Kumata
This virtual exhibition of the works of Michelle Kumata features the highlights from her Northwest Nikkei collection celebrating the Seattle Japanese Garden and our local Nikkei community of 1960, the year the garden officially opened to the public.

'Moon Viewing' is shown here. Each fall, the Seattle Japanese Garden hosts a moon viewing celebration. The Garden is lit with paper lanterns and candles, and musicians and artists perform in celebration of the autumn full moon. This scene evokes the magic and mystery of this evening event.

An in-garden exhibit at the Seattle Japanese Garden is planned for August and September 2021. The entire collection will be on display there. Plans are still underway, and more information will be posted at www.seattlejapanesegarden.org as soon as it's available.
Ask the Plant Answer Line: Fruit on my staghorn sumac?
Researched by Rebecca Alexander
staghorn sumac flower

Q: I planted three staghorn sumacs several years ago. They have done well, and have nice fall color, but I was hoping to see the flowers and fruit. This summer, for the first time, there are flowers on one shrub. What prompted the change? Will the flowering plant have fruit?

A: Anecdotally, there are reports of Rhus typhina (staghorn or velvet sumac) taking a while to flower and fruit. If you don't have flowers on more than one of your three plants, you are not likely to get fruit. Rhus typhina and Rhus glabra (smooth sumac) are dioecious, meaning that they produce male and female flowers (yellow green upright cone-shaped panicles) on separate plants. Plants of both sexes need to be grown together, and pollen from the male flowers needs to reach the female flowers, for the the upright clusters of the fuzzy disc-shaped dark red fruit (berry-like drupes) to develop on the female plants. These fruit clusters are colloquially referred to as 'bobs.'

You can examine the flowers on your plant closely (with a hand lens) to determine if they are male or female. Male flowers tend to be larger and have five yellow-tipped stamens, while female flowers have a three-lobed style in the center, and a calyx with five pointed lobes nearly the same length as the petals. Both flower stalks and calyx are densely hairy. [Source: Minnesota Wild Flowers field guide online] Here are additional photos to clarify the description.

ask a librarian
The Miller Library's Plant Answer Line provides quick answers to gardening questions.
You can reach the reference staff at hortlib@uw.edu or from our website, www.millerlibrary.org.
Digital resources
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The native pollinator habitat restoration guide : best management practices for the Puget Sound lowlands / Matthew B.
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