What an interesting question you have asked! Now I'm wondering.

Stewart Island is the southern most island of New Zealand. You might like to contact the New Zealand Plant Conservation Network - see site listed below for address of the Stewart Island contact person.

Our land masses are a long way from the South Pole, separated by ocean. Even our most hardy plants may be too "temperate" for your situation.

Here is a link that might be useful: http://www.nzpcn.org.nz/members/index.asp?district=Stewart%20Island&

Thank you for your tips. I will try to contact somebody on Stewart Island. I know that there is a distanse from sout end of the NZ to the south pole, but tha nature is full of suprices. I grow many NZ species in my garden, from genuses as acaena, aciphylla, parahebe, hebe, celmisia, myosotis, wahlenbergia and others, without any form of winter protection at all. Some years there are up to 8 month of snowcower, with up to 250 cm of snow. The few months of summer we have midnight sun witch prolong the growing season. So I still wonder, witch trees from oceania shuold I try in my garden?

Camphor Laurel ?

A contact for you could be Wildseed Tasmania. I have dealt with them before and found them very informative and helpful with overseas folk wanting provenance seed for cooler climates.
I do apologise for the posting by Wooroonooran, don't try to understand it, he sometimes thinks he is "funny".

Here is a link that might be useful: wildseed tasmania

Wooroonooran - you made me laugh!! But I suppose that even Norway has its environmental weeds.

Alison, I am funny!
Take a deep breathe!
I can send you a brown paper bag if you need one.

Kris

Nothofagus exists fairly high in the hills but is only hardy to zone 7.

Possibly Podocarpus nivalis var.erectus (mountain totara) and/or Podocarpus hallii (Hall's totara.)

P.nivalis is low-growing, like a parahebe, and is sub-alpine on screes. It rears up to about a metre. var.erectus gets to about 3m. P. hallii is a stocky tree that is found in groups, with a fairly diverse understorey. Definitely found at the south end.

Dacrydium laxifolium is another sprawler, found in boggy places up to 1500m.

Phyllocladus alpinus (mountain celery pine) - up tp 1500m and found right down to Foveaux Strait. It can get to 8m but more like 1.5m in the alpine zone. (A personal favourite. I really like the leaves.)

All of these are conifers.

Stewart Island is not exactly bleak. On the south coast it is windswept but around Paterson's Inlet there is bush and grasses right down to the water's edge. It gets cold but the sea stays open; no ice. (Too windy!)

I'm a bit shaky on the botany of the sub-Antarctic islands - eg Campbell Island. I'd suspect, though, that shrubs are more likely.

I regret I haven't a link for you but you may choose to look up The New Zealand Forest and Bird Society. I was also going to suggest "Otari/Wilton Bush" but the direction in the phone book is vague. However, Otari is a native plant museum with a huge range of specimens, based in Wellington.

Thanks for the suggestions, I`ll try to get seeds from some of the trees you suggest, and try them out in my area. Notophagus antarctica (seeds from southern Chile)grows to about one meter in my area, but my goal is to find something that grows to at least three meters.