The Kaldenkirchen Sequoia Farm (german: Sequoiafarm Kaldenkirchen) is a German
arboretum
An arboretum (plural: arboreta) in a general sense is a botanical collection composed exclusively of trees of a variety of species. Originally mostly created as a section in a larger garden or park for specimens of mostly non-local species, man ...
that has been used as a biological institute for many years. Part of the
protected area
Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the ena ...
in the city of
Nettetal
Nettetal is a municipality in the district of Viersen, North Rhine-Westphalia, Germany. It is situated in the Lower Rhine region.
History
Nettetal was founded on January 1, 1970, when the former townships Leuth, Breyell, Hinsbeck and former to ...
, it is situated in the "
Kaldenkirchen
Kaldenkirchen ( li, Kaldekerke) is a town in North Rhine-Westphalia in Germany, situated close to the Dutch border at Venlo. It is part of the municipality of Nettetal.
History
The earliest reference to “Caldenkirken” appears in a document ...
Grenzwald" (forest bordering Germany and the
Netherlands). Nettetal lies in the
Lower Rhine region of Germany.
History and use
In 1946,
Illa Martin
Illa Martin (born Sybilla Kesselburg; 25 February 1900 – 6 August 1988) was a German dendrologist, botanist, conservationist and dentist.
Life
Illa Martin was the daughter of a brewery owner in Viersen. She studied dentistry in Bonn, Würz ...
and Ernst J. Martin, both dentists and
dendrologists in Kaldenkirchen, founded an arboretum close to the
Dutch border. There, and in a nearby laboratory-plantation several acres wide from 1952 on, they cultivated 1,500
giant sequoia (''Sequoiadendron giganteum'') seedlings from seeds of US origin from Martin's nephew Albert A. Martin of Santa Barbara, CA. The seeds were collected in Sequoia National Forest at different elevations, wrapped in burlap to preserve them and sent to Germany. They wanted to find out if the giant sequoia, which had existed in Germany before the
ice age, could be introduced to German
forestry. There was on the one hand an area of purely giant sequoia, on the other an experimental arboretum with trees such as ''
Abies grandis'', ''
Abies concolor var. lowiana'' and
Coast Douglas-firs. The project was financially supported by the
German Research Foundation
The German Research Foundation (german: Deutsche Forschungsgemeinschaft ; DFG ) is a German research funding organization, which functions as a self-governing institution for the promotion of science and research in the Federal Republic of Germ ...
and met with great interest from dendrological circles, particularly in Great Britain and in the USA. Part of the field exclusively planted with giant sequoia was reserved for obtaining results of productivity by the "Ecology and Forestry Department" of
North Rhine-Westphalia (NRW).
The two dendrologists made further experiments growing seedlings of
coast redwood,
dawn redwood and numerous kinds of
southern beeches and
pine trees. More than 13,000 were handed over to forestry officers, to scientists and to
plant nurseries. As time went by, the park known as the "Sequoia Farm" became bigger and bigger, developing into a highly respected arboretum. It has more than 400 varieties of trees and interesting ground flora and is part of the "Protected area of
Maas-
Schwalm-
Nette
Nette can refer to: Rivers
* Nette (Innerste), a river in Lower Saxony, Germany, tributary to the Innerste
* Nette (Hase), a river in Lower Saxony, Germany, tributary to the Hase
* Nette (Middle Rhine), a river in Rhineland-Palatinate, Germany, tr ...
", so-called after the three rivers that run through the area.
After the death of Ernst J. Martin in 1967, North Rhine-Westphalia (NRW) took over the farm. At first, the teacher-training institute of NRW, later on the
University of Cologne, and, between 1987 and 2007, the
University of Duisburg-Essen made it a centre of dendrological studies. Since 2013 the arboretum has been in possession of the registered society "Sequoiafarm e.V.".
From April to October it is open to the public on Sundays and holidays.
Notable trees (selection)
References
* Ernst J. Martin: ''Mammutbäume in der deutschen Forstwirtschaft?'' In: ''Die Umschau in Wissenschaft und Technik''. Frankfurt 1954,
* Ernst J. Martin: ''Sequoia – eine gehölzkundliche Betrachtung''. In: ''Holz-Zentralblatt'' No. 83. Stuttgart 1955,
* Ernst J. Martin: ''Die Sequoien und ihre Anzucht''. In: ''Jahrbuch der Deutschen Dendrologischen Gesellschaft''. No. 60. 1957/1958
* Herbert Hubatsch: ''Von der Sequoiafarm zur Biologischen Station''. In: ''Heimatbuch des Kreises Kempen-Krefeld'', Kempen 1973
*
Helge Breloer
Helge Breloer née ''Martin'' (October 28, 1937 – April 23, 2011) was a German jurist, tree-appraisal expert, and author of nonfiction books.
Life and work
Helge Breloer was born in Mönchengladbach. She was the daughter of Illa und Ernst J. M ...
: ''Zur Erinnerung an die Sequoia-Farm in Kaldenkirchen''. In: ''Baum-Zeitung''. No. 1/1998,
* Ado Lappen: ''Die Sequoiafarm in Nettetal-Kaldenkirchen''. In: ''Beiträge zur Gehölzkunde 2011''. Hemmingen 2011,
Notes
External links
Photographs. History of the Arboretum Sequoiafarm (German)Sequioafarm Kaldenkirchen in "Projekt Mammutbaum" (German)Ernst J. Martin in "Projekt Mammutbaum“ (German)List of stocks of the woody plants
{{coord, 51, 18, 32, N, 6, 10, 20, E, display=title
Arboreta in Germany
Dendrology
Education in North Rhine-Westphalia
Forestry in Germany
Sequoioideae
1950 establishments in West Germany