Gary Dale poses something of a rare mix of two seemingly opposing hobbies - riding Harley Davidsons and growing geraniums.

Mr Dale, of Dural, NSW, is an example of just how diverse and broad thinking Australia's nursery and landscaping industry has become.

His geranium-laden stall, complete with flower-sprinkled Harley, was just one of 120 exhibits from some 80 companies on display yesterday at Sydney’s Rosehill Racecourse as part of the inaugural Green Expo Sydney (GES).

The GES trade show for those in the horticulture industry drew about 1500 people over two days keen on seeing the latest in plant breeding and landscaping products.

Companies and businesses from New South Wales, Queensland, Victoria, Tasmania and even New Zealand were represented.

Nearly all exhibitors who spoke to Australian Horticulture had high praise for the event, commenting on how well it was supported.

Michael Skegg, chief executive officer, Nursery and Garden Industry NSW and ACT, and one of the main organisers of the event, said it was the first time in about 10 years such an expo had been put on in NSW.

"We plan to make it an annual event," Mr Skegg said. "One thing that stands out to me is the effort of the stall holders that has gone into their displays."

The trade show also saw the launch of several new products including vertical plant growing furniture, volcanic magma paving stones and from Gary Dale, a special yellow geranium.

Awards were also given out for some of the best new products and best trade displays.

Not surprisingly, Mr Dale said none of his Harley-riding mates were into growing geraniums, while he couldn’t think of many geranium growers who enjoyed the roar of a "hog" beneath them.

He said that on one occasion, at a meeting of his motorcycle club, he gave away a hanging basket as a prize.

"I almost got hung," Mr Dale.

And what would any leather-clad, tough-as-nails, road-eating bikie call his home base?

The Geranium Cottage, of course.