Grafting Aussie natives, especially Eucs, is a very specialised field; it's only in fairly recent years that trees marketed by names such as 'Summer Red', etc., have been successfully grafted.
A Thirty metre euc when you're looking for one 5 to 7 is not really what you want. Have a look around the nurseries, even Bunnings, sell a variety of flowering gums; pinks, reds, even a white, I think I've seen form sale. Most, if not all, are well below 30 metres.
B.

Hi there, ive from Sydney and looked into these 2 years ago. Amazing looking tree. Unfortunately the Sydney and Melbourne botanical gardens have had problems growing them. You might have to go with something else. Eucalyptus eucky dwarf is nice as is Corymbia ficifolia wildfire. Have you looked into Golden Penda or Tree Waratah (Alloxylon flammeum).

Cheers
Tim

Thanks for the replies. It seems eucalyptus grafting is more hush hush than fight club. Looks like we'll be going with a grafted C. ficifolia but I have started growing a few E. deglupta and E. gregsoniana from seed just from curiosity. Out of 100 seeds, I have four deglupta seedlings coming along and 60 out of 100 gregsoniana shooting up. I understand Sydney and Melbourne botanical garden's troubles.

I'll have to check out the Alloxylon flammeum. Sounds familiar.

I couldnt even source seed for them. Where did you find them? I hope they work for. Great looking tree.

eBay my friend.

Well, aside from dwarfing Eucs, can anyone provide info on grafting and growing from cuttings?