Go to the NZ Gardener link http://www.nzgardener.co.nz/ for full details if you'd like to add a nomination or let me know if there is anything you'd like to add to mine. Entries close at the end of August, finalists are announced in the October NZ Gardener and then the winner will be announced as a result of a public vote in December.
From the website :
NZ Gardener, in association with Kiwicare, is searching for NZ's green-thumbed superheroes - send your nominations now! It's time to find our keenest pair of green thumbs. Our annual search for unsung horticultural legends, now in its seventh year, is back with more prizes than ever!
$25,000 worth of prizes.
Send nominations to 2013 Gardener of the Year, NZ Gardener, PO Box 6341, Wellesley St, Auckland or email firstname.lastname@example.org