There are still questions about who will fund a proposed international horticultural show if it  comes to Niagara.

The 150 day exhibition could cost as much as 360 million dollars.

Niagara Parks Commission Chair Janice Thomson tells 610 CKTB's Tim Denis, the NPC has agreed to be one of the potential sites but only if the organizor, Landscape Ontario comes up with the cash.

Thomson describes some of the proposed infrastructure projects which helps explain the steep price tag.

She says the organizors have planned a tree walk in the sky over Dufferin Islands along with an aerial car that takes visitors through the exhibits in Queen Victoria Park.

Thomson says Landscape Ontario estimates the event would draw between 2 and 3 million visitors.

The event is planned for 2017 to coincide with Canada's 150th anniversary.

The NPC chair says the organizors have set a deadline of March 2013 to come up with enough money to pay for the expo.