Category Archives: Perennial vegetables

Perennial vegetables

Mountain cultivation of Udo in Nagano

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On 9th April 2016 I was staying with my new friend Tei Kobayashi in the mountains in a lovely village, Nogura, above Ueda in Nagano Prefecture. I was put in touch with Tei through a mutual friend in Norwegian Seed Savers (KVANN), Caroline Ho-Bich-Tuyen Dang, when I put out a call for an interpreter when visiting the farm with the underground udo forcing caverns in Tokyo: https://www.edimentals.com/blog/?p=8284 and https://www.edimentals.com/blog/?p=7499
Tei had kindly agreed to travel down to help out!
She took me to see udo (Aralia cordata) being grown on a small farm in her village with a villager who had knowledge of sansai. The new shoots were just appearing through a thick layer of rice husks. Here’s a video and some pictures of this beautiful place! Thanks again to you Tei for your hospitality without which this would never have been possible!
There will hopefully be more posts from the visit with Tei as soon as time allows!
Tei starts talking about another use of rice husks, in nukazuke, fermented vegetables in rice bran (nuka), see https://en.wikipedia.org/wiki/Nukazuke



   Showing us Chengiopanax sciadophylloides (koshiabura) which had yet to emerge:

Forest Gardening, Garden tour, Perennial vegetables

Fact-finding mission: promoting perennial vegetables

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On Tuesday 23rd May I spent a great few hours together with Eva Johansson and Annevi Sjöberg from Sweden in my 3 gardens. They were on a fact-finding mission in connection with the project  ”Främja fleråriga grönsaker i svensk matförsörjning” (Promoting perennial vegetables in the Swedish food supply).
The project Främja fleråriga grönsaker i svensk matförsörjning is financed  with funds from the Swedish Agency for Agriculture (Jordbruksverket) within the framework of the Swedish food strategy (den svenska livsmedelsstrategin). The project runs until Dec 2023. The Skillebyholm Foundation manages the project.
Jen from Nottingham in the UK was visiting this week to help and learn, thanks to an RHS bursary! She joined us on the trip and can also be seen in the pictures below!

Jen, Eva and Annevi were on an Allium-high after spending time in the Onion Garden Chicago at the Ringve Botanical Garden in Trondheim :)
Me with Eva, Jen and Annevi in the Edible Garden
Sampling Hablitzia tamnoides shoots in my garden



Garden tour, Perennial vegetables

God Save the King’s Hostas!

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My only post on last weekend’s big news item. This memory came up on my feed this morning. In October 2015 I talked about my book Around the World in 80 plants at the Walled Kitchen Garden Network Forum weekend at the National Trust Property Croome Court in Worcestershire, England. As usual I joked about Prince Charles having the most productive Forest Garden in the UK as he had a national collection of large-leaved Hostas in woodland at Highgrove. Little did I know that the Prince’s head gardener was sat near the front. After the talk, he introduced himself, astonished that Hosta were edible. I thought quickly and presented him with a copy of the book and signed it “To HRH Prince Charles, Good luck with your Hosta eating!”. I had known of the Prince’s good works within the organic gardening movement since the 70s and indeed Highgrove is managed as an organic farm.
I was surprised to receive this letter later that winter and it resulted in a correspondence about Hosta cuisine which lead to me being invited to Highgrove to talk more and see the Hosta collection (sadly, there are no pictures of that day as cameras are strictly forbidden nor was I allowed to see the pictures the staff took). I had a hope that the Prince might turn up, but he had a lame excuse that it was his Mum’s birthday…..and now I’ve had to modify the slide about Hostas and Highgrove (see the comments).
God Save the King’s Hostas!

My Highgrove Hosta slide:

Climbers, Perennial vegetables

Hablitzia under Norway Spruce

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Hablitzia tamnoides (Caucasian spinach / stjernemelde) has self-sowed numerous times in my garden but only up to now on cultivated beds with naked soil.  Now for the first time I noticed one had popped up in dry soil under my two oldest Norway spruce trees (Picea abies; gran) which are probably in their 80s. There are a number of Hablitzia plants in a bed about 8m above this site  (I believe that  the shiny seeds of Hablitzia can disperse by falling on icy snow and are blown by the wind). This is an area which had been invaded by hedge mustard / løkurt (Alliaria petiolata). I’ve been systematically removing this plant from this area and other parts of the garden where it was rapidly taking over. Incidentally, another climber, Bryonia alba, appeared in the same location in 2010, but died after a few years (last picture). It wil be interesting to see if this plant manages to establish here. 
No, I don’t think Hablitzia has the potential to be invasive!

Self-seeded Hablitzia in dry soils under two old Norway spruce trees
The plant is located near the centre of this picture
There are several self-seeded Hablitzia plants in this bed about 8m away from the new site

 

Bryonia alba photographed in 2010 in the same location
Climbers, Perennial vegetables

Walking’s not healthy for Habbies

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I’ve been growing Hablitzia tamnoides, affectionately known as Habbies, for over 20 years and this is the first registered mortality. On a shallow bed under a birch tree, plants lift during winter as if to walk off to take over the world (OK, probably just frost heave as also happens with parsnip roots), and one of them is now no more, a dead Norwegian habby :( 

Here’s a few more that are going the same way of I don’t rescue them:

…and below is a nice little edible community where both self-sowed Siberian hogweed (Heracleum sibiricum) and stinging nettle (Urtica dioica) are growing happily in company with Hablitzia tamnoides!


Botanical Garden, Community Garden, Garden tour, Perennial vegetables

Garden visits with Fosen students

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It’s always a pleasure to spend time with students from the Fosen Folk High School from the other side of the fjord. Despite the dreadful weather, we visited all 3 of my sites – the onion garden Chicago at the Ringve Botanical Gardens followed by the Væres Venners Community Garden and, finally, my own garden The Edible Garden (this is the first time I’ve taken a group to all 3 sites!).
Those that took part were two of the “lines”: The Self-sufficiency line and the  The Organic Farming line (small scale).
The Organic Farming line were only on the first two visits, so the picture only shows the Self-sufficiency folk!

Edimentals, Perennial vegetables

Megacarpaea delavayi

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This is one of the most exclusive vegetables and finest edimentals out there, Megacarpaea delavayi (Brassicaceae), a plant found in the high mountains of southwest China at high altitudes (3000–4800 m), and one of the most beautiful! Flora of China says it grows in swampy meadows, grassy slopes and open thickets. It also states that it is used for medicine and as a vegetable. Consulting Google Scholar I found a paper “Eating from the wild: diversity of wild edible plants used by Tibetans in Shangri-la region, Yunnan, China” by Yan Ju et al. (2013) which states that the young stems and leaves are used.
I purchased two young plants I found for sale in a small selection of plants for sale at the Gothenburg Botanical Gardens shop in Sweden in 2011. They took two years to flower and set seed in a shady, dry spot in my garden. It is thought that Megacarpaea can be monocarpic (dying after flowering) but it did come back three more years but grew weakly and did not flower again. I therefore moved the plant to a new location in 2016 which was a bad move as it died…
Sadly, I never did get to eat some….
I put the seed I harvested on my seed list two years in a row and sent to a few people, so if you are one of them and have seed, I am very interested! I germinated some of those seed myself (picture), but I don’t recall what happened to them…
Perennial vegetables

Fairchild’s Experiments with Udo from 1914!

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Yesterday, I introduced Agricultural Explorer David Fairchild who, inspired from visiting Japan, was determined to try to introduce udo (Aralia cordata) and wrote an interesting paper 120 years ago giving more details about this novel perennial vegetable: 
Udo introduction to the US with cultivation instructions (1903)
11 years later in 1914, he wrote a really interesting report summing up his experiences with udo.  It blows my mind to read how much work was done on this plant over 100 years ago, but sad to see that it was never adopted in a big way! You can read the whole report and I recommend you do, but I’ve picked out some titbits from the report that I found particularly interesting followed by a few other interesting excerpts from various inventories of introduced plants to the US!

Download (PDF, 5.69MB)




Perennial vegetables

Udo introduction to the US with cultivation instructions (1903)

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I stumbled upon this interesting US Department of Agriculture Bulletin from 1903 by David Fairchild, who calls himself Agricultural Explorer, entitled “Three New Plant Introductions from Japan”. There are 4 pages and some photos concerning udo (Aralia cordata)  in the article “Udo : A new winter salad” (see pages 17-20 and the plates in the pdf below). This gives detailed growing instructions for “Kan udo” and “Moyashi udo” for harvesting during winter (October to May); these are cultivation techniques rather than udo varieties. Winter cultivation is more relevant to areas with relatively warm winters.
The other two plant introductions are Edgeworthia chrysantha as a fibre plant (for producing paper) and wasabi (Wasabia japonica).
Kyle Dougherty posted on my Edimentals Facebook group in 2021 about the same program with a great picture of udo cultivation and wrote  “Here’s an interesting story for the udo (Aralia cordata) fans out there. In 1902 the USDA imported some 25,000 improved udo plants into the United States from Japan for trialing as a new vegetable crop. Plants were grown at the experiment station in Rockville, MD until at least 1917, and were also distributed to private gardens around the country and the Chico field station in CA. The Rockville experiment station is long gone, and is now the site of Montgomery College, but I can’t help but wonder if any of these plants are still out there somewhere. It’s also kind of a bummer that it never really caught on despite the effort the USDA put into it.”

Here’s the document I discovered (pages and plates are repeated below)

Download (PDF, 5.32MB)




Food, Fungi, Perennial vegetables

Wild Enoki, Oca and Hablitzia scrambled eggs

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Wild Enoki, Oca, Hablitzia, wild buckwheat sprouts, Allium nutans  with dandelion, garlic chilis mixed with scrambled eggs for a delicious home grown and foraged lunch!
Enoki is one of the hardiest fungi appearing often midwinter in mild winters. Also known as velvet shank (vintersopp in Norwegian, meaning winter fungus; Flammulina velutipes). Many had been reporting finding this species recently, and I too found some when I visited the botanical garden the other day! It’s difficult to believe that this is the same fungi as Enokitake or Enoki, sometimes offered in supermarkets and one of the most popular cultivated fungi in the Far East. The cultivated fungi are long and white as they are grown in the dark in an enriched CO2 environment which gives longer stalks.