The Hort Galore marquee is already "full and bursting at the seams", she says.

"The interest from horticultural clubs and societies to be involved in Ellerslie has been overwhelming - it is fantastic."

Ms Hillier says while interest from South Island garden designers has been strong, there has also been good interest from North Island designers looking to continue their long association with Ellerslie.

"Designers recognise the value and importance of Ellerslie in helping to promote their national and international profile and develop their career."

Ellerslie International Flower Show Managing Director Dave Mee says the first Christchurch-hosted Show is shaping up to the best yet.

"There is real excitement nationally and internationally about the change in venue, change in city and the energy from Christchurch to create a world-class event - a Show which will be recognised as one of the top five garden shows of the world," he says.

"With all the changes, the horticulture industry has been reenergised for Ellerslie 2009 and is excited about the programme of other activities Christchurch is developing to support the Show.

"We were overwhelmed at the recent Chelsea Flower Show with the number of international garden designers endorsing Ellerslie's move to the South Island," Mr Mee says.

"Christchurch really is going to be the place to be in March 2009."