Documentation of yet another amazing day during last week’s Perennialen III in Hardanger!! Pictures taken on a fantastic 6-7 hour round trip from Eirik Lillebøe Wiken and Hege Iren Aasdal Wiken’s house to their shieling (støl or seter in Norwegian). We took our time botanising on the way up, passing through different types of forest on the way up, from alder (or), ash (ask), planted spruce (gran), lime (lind), elm (alm), hazel (hassel), aspen (osp) and birch (bjørk) at the highest levels. Lower down, old apple trees witnessed that these steep slopes had at one time been worked for fruit production, no easy matter….
Eirik and Hege are planning to rejuvenate and replant some of this area and have planted a multispecies forest garden above and below the house, probably one of the most dramatic forest gardens in the world (more later).
The genus Hosta is just about my favourite vegetable as you can read in my Book Around the World in 80 plants, productive, tasty and perfect for a forest garden as it doesn’t mind deep shade! I did a walk and talk at the Botanischer Garten der Universität Wien as part of my tour organised by Arche Noah in mid-June 2017. To my great surprise, there was a Hosta installation in the garden and a large collection of species Hosta! It turns out that the genus Hosta was named after Austrian botanist Nikolaus Host (1761-1834) and he managed a garden on the site of the botanical garden until his death!
From the garden’s web site: “On the occasion of the 250th anniversary of the birth of Nikolaus Thomas Host (1761-1834). A group of students of the class for landscape design, under the supervision of the British artist and landscape designer Tony Heywood, is working on a “horticultural installation” for the Botanical Garden of the University of Vienna.”
Here’s a series of pictures from the installation “Hosta Superstar” and a long bed of species Hosta!
All Hostas are edible.
This was the highlight of my guided tour of the garden which ended at the Hosta installation.
It was unknown to the garden that Hosta are edible and the director was excited of this new dimension to the garden…perhaps there will be a Hosta tasting next spring!
Cleaning out my office and I found a local newspaper article about an open day in my garden almost 13 years ago (August 2004) with a picture of me and my only 3 year old Hablitzia (noted in the caption as my favourite plant: a perennial spinach!) that’s still going strong and already in vigorous growth!
In June 2009, I was shown the only naturalised stand of victory onion (Allium victorialis) in south western Norway (away from Lofoten Islands – Vestvågøy – and Bodø area where there are several large populations). It’s found in a damp wood (which regularly floods in spring) along the Granvinselven. Please refer to my book Around the World in 80 plants for more information about this fantastic onion!! This onion can grow both in shady and full sun localities:
Another great edimental for the woodland garden is this form of common wood sorrel (gjøksyre)….received as Oxalis acetosella “Rosea” although I wouldn’t describe the colour as pink…sadly, it didn’t make it more than a few years here…
As an introduction to two soon to be published blog posts concerning visits to two nature reserves in Japan during the mass flowering of katakuri (Erythronium japonicum) in early spring 2016, here is a short around the world with edible Erythroniums review, with an album of pictures of various species and varieties that I’ve grown here in Malvik together with pictures taken in various botanical gardens!
Known in English variously as trout or fawn lilies (on account of the spotted leaves) and dog’s tooth violets (not related to violets, the bulbs resembling dog’s teeth), there are some 25 species found in North America and Eurasia…
There are a number of species in North America, several, if not all of which were used by Native American tribes. In Daniel Moerman’s Native American Ethnobotany (http://naeb.brit.org), 5 species are documented as used for food, with yellow flowered E. grandiflorum (Glacier or Avalanche lily) with most records, including: “Bulbs eaten raw and cooked, dried for winter use; small root ends of corms eaten as candy by children; made into a pudding by boiling black tree lichen, dried saskatoons (Amelanchier), salmon eggs, lily bulbs, or bitter root (Lewisia) and deer fat”. Other species for which the bulbs were either eaten raw, baked, steamed, cooked and (sun)dried for later use are E. mesochoreum, oregonum and revolutum. An interesting technique was to chew the root and spit it into a river to make fish bite (trout, I presume ;) ). One informant says, however, that the raw corms were poisonous (but there are many records of them being eaten raw). Erythronium oregonum bulbs were, according to ethnobotanist Nancy Turner, an important food for the Kwakiutl people on Vancouver Island in Canada. They were eaten raw, baked, boiled, or dried.
The best North American modern firsthand account is as usual that by Samuel Thayer in his wonderful book Nature’s Garden. He notes that the species he uses most is woodlander Erythronium americanum, not documented as edible (only medicinal) by Moerman. He rates the early spring bulbs highly, tasting “ like sweet corn or snow peas..crunchy, sweet and tender raw”…but he notes that they are small and it takes a lot of effort to pick a decent amount (he also notes that E. grandiflorum bulbs, a species that grows in alpine meadows, are bigger). Various early foraging authors in the 50s and 60s, including Euell Gibbons, note that the leaves, flower stalks, buds and flowers of americanum are eaten raw and cooked. Thayer is not fond of the leaves or flowers, however, saying that they are “best before unfurled…bitter aftertaste…worse after cooking”, but he comments that others enjoy the taste. I haven’t noticed any bitterness the times I’ve tried different species. Gibbons also mentions that white trout lily (E. albidum) has similar uses to americanum.
The species that grows best for me is dog’s tooth violet Erythronium dens-canis. This species was once considered to range from Southern Europe to Japan, but the Eastern forms are now considered to be separate species, E. sibiricum and katakuri (E. japonicum), both of which I grow, but clumps grow very slowly, if at all! In Sturtevant’s Edible Plants of the World (1919), it’s stated that the Tartars collect and dry the bulbs of dens-canis and boil them with milk or broth. Cornucopia II informs us that “Roots eaten with reindeer’s or cow’s milk in Mongolia and Siberia. Leaves boiled, starch from roots..” (presumably this is what we now know as sibiricum).
Ken Fern in Plants for a Future recommends E. “Pagoda” and “White Beauty” as they “grow freely when well-sited” in the UK. Alan Carter in Aberdeen has firsthand experience and on a good blog about Erythroniums for the forest garden (see https://scottishforestgarden.wordpress.com/2013/07/06/eating-dogs-tooth-violet) rates “Pagoda” as the best one to grow for eating, due to its larger bulbs and states that “My favourite way of cooking them is to slice them thinly across and fry the discs”. Pagoda is a hybrid between Erythronium tuolumnense and Erythronium californicum ‘White Beauty’ and is readily available.
All the North American species I’ve tried including Pagoda have sadly not survived more than a few years at best in my garden.
As mentioned, Erythronium japonicum will be the feature of two follow-up blogs and I will discuss this one more later, but the bulb starch, known as katakuri-ko, was important and harvested from the wild in the past in Japan, but nowadays potato starch is used in its place as the wild stands are considered by some to be under threat, not only dug up for food but also removed from the wild for the ornamental plant trade… We will also see that both the leaves and flowers are used in Japan. If using leaves, it’s best to only one of the two leaves produced each year so as not to weaken the stands too much.