PERMABREED

 eucalyptus pauciflora subsp. niphophila. I planted this eucalyptus because it is extremely cold tolerant and beautiful. Also the tree doesn't get taller than 7 meters. Its leaves can be used medicinally. This one, together with eucalyptus regnans, are the only eucalyptus trees i planted, but i am thinking about planting a eucalyptus radiata because it has such outstanding medicinal properties. Funny enough this tree is probably one of the smallest eucalyptus trees whereas my other one, eucalyptus regnans, is the tallest. While i worry about my regnans in terms of frost and wind damage i don't need to worry about this one because it is hardy up to minus 18 C (0 F)

 Eucalyptus regnans. Fascinated by this majestic tree i had to try and grow one of these beauties. Frost tolerance for this tree is very hard to define according to several sources. Since this tree can naturally be found in the australian mainland and in tasmania, frost tolerance is said to vary greatly depending on where the seeds come from. My research leads me to believe that eucalyptus regnans' frost tolerance can vary between -5 to -15 Celsius (23 F to 5 F) depending on provenance. The cold hardiest ones come from the coldest part of tasmania. But i am by no means very knowledgeable on this subject and maybe -15 (5 F) is a vast overstatement. The tree that you see in this picture is 3 years old and over 5 meters tall (now let that sink in for a second, especially considering what i will tell you shortly). I never saw any tree, ever, and i planted quite a few different trees of different species, grow as fast as eucalyptus regnans. In fact this is the first time that i actually...