Eight New Zealand rowers unveiled a sculpture at the New Zealand Garden in Savill Garden at Windsor Great Park last week. The sculptor was New Zealander John Edgar.
Fraser, who helped source plants for the garden when it was designed by Sam Martin in 2007, said: "There is a fantastic relationship between New Zealand plants and gardening in the UK. I hope the Savill Garden will inspire people to use New Zealand plants in the UK."
He said lancewoods, Pseudopanax and grasses such as Chionochloa rubra could replace the previously limited palette of the past of flax and cabbage trees.
Fraser said Tresco, the Isle of Wight and Inverewe have fine New Zealand collections too, with them and Savill all in sheltered locations.
Martin said the design took three years of planning but was the final jigsaw piece in the only country-specific garden on royal land.
He added: "I reckon the artwork will transcend a lot of things. Bottom line is that a few people who can afford to underwrite some art get it back plus some, not in cash but in real terms."
Savill Gardens keeper Mark Flanagan said he hoped the sculpture would bring more New Zealanders to the garden. "There is a sense of more overseas visitors after a dip caused by the economy."