The ability of spruces to survive harsh conditions also presents other questions for researchers.
Have the spruces actually migrated here during the Ice Age as seeds from the east 1,000 kilometres over the inland ice that that then covered Scandinavia?
For many years the spruce tree has been regarded as a relative newcomer in the Swedish mountain region.
White Pine are available as potted trees, balled and burlap, and pre-cut christmas trees.If you do not have the password and would like to access to our pricelist in PDF please click on the receive password link, or give us a call or email us and supply your Company Name, and phone number.Pines also suffer in urban environments with air pollution, but in the right USDA zones and with proper soil, water and full sun, most can survive such challenges. Their needles come in pods of five and are very long and soft as are their branches.Although summers have been colder over the past 10,000 years, these trees have survived harsh weather conditions due to their ability to push out another trunk as the other one died.
"The average increase in temperature during the summers over the past hundred years has risen one degree in the mountain areas," explains Leif Kullman.
A fascinating discovery was made under the crown of a spruce in Fulu Mountain in Dalarna.
Scientists found four "generations" of spruce remains in the form of cones and wood produced from the highest grounds.
Previously, pine trees in North America have been cited as the oldest at 4,000 to 5,000 years old.
In the Swedish mountains, from Lapland in the North to Dalarna in the South, scientists have found a cluster of around 20 spruces that are over 8,000 years old.
"In some way they have also successfully found their way to the Swedish mountains." The study has been carried out in cooperation with the County Administrative Boards in Jämtland and Dalarna.