Tack, Ludvig,
To tell true I didn't hope that something will come alive through last winter looking to the pictures on the forum (and on a thermometer, too :) ). But for my great surprise, most of the palms and other exots survived. Last year some losts happened during april and may because of "temperature shock", immunity deficience and -> bacterial / fungi diseases. Anyway each year is a great experience.
Antti