In recent years, vegetable growers have started to open their eyes to perennial vegetables and quite a few are growing several types. Many more growers are curious and interested, but haven’t got started yet.
Now you can download the report put together by Eva Johansson, Annevi Sjöberg and Johanna Karlén through visits and interviews with growers of perennial vegetables all over the Nordics, including my 3 gardens in Trondheim / Malvik in June.
(Nice that the Onion Garden Chicago made the front page!)
My article “Caucasian spinach: the unknown woodlander” was published by Permaculture Magazine 9 years ago in 2007 (see http://www.edimentals.com/blog/?page_id=1984
and also my book Around the World in 80 plants). In the meantime this vegetable has become a popular perennial vegetable and forest garden plant grown by thousands around the world, and is perhaps the first new vegetable to become popular thanks to social media and the permaculture movement! At last the results of a project to analyse the nutrient content of this plant have been announced on our Friends of Hablitzia FB group by Leena Nurmi who carried out the work for her masters thesis in Finland! And the news is very good, confirming that Hablitzia (Caucasian Spinach) is not only a fantastic productive perennial vegetable but also is superior to spinach and New Zealand spinach nutritionally and for those who worry about oxalic acid and nitrates, both are within accepted limits!!
Time for a celebration
She writes: “Hello Stephen and other Hablitzia friends! Greetings from Finland. I have done my master’s thesis about Hablitzia “Hablitzia tamnoides – a new but old leafy vegetable of early summer: cold stratification of seeds and nutritional value of leaves”. Now I am writing a scientific article about the nutritional value of Hablitzia. Caucasian spinach contains particularly plenty of carotenoids, folates, calcium, magnesium, phosphorus and zinc. Also many other nutritions were larger in Hablitzia than in spinach and New Zealand spianch. In my study the oxalic acid, nitrate, cadmium and lead contents did not outweigh the permissible threshold values. The seeds of Hablitzia need to be stratified either in a cold room or outside during winter in order to germinate. The highest germination rate was 52 %, recorded from the Tampere population stratified at +5 ºC in a cold room. The seeds of Tampere population were picked up in February and sown for stratification in the middle of March. In Finland Hablitzia grows even in Oulu, but wetness of soil kills the plant very easily.”
Perennial vegetables, Edimentals (plants that are edible and ornamental) and other goings on in The Edible Garden