Western Australian wildflowers are integral to the success of this sheep and agricultural farm

Chris Biddulph is looking forward to the next few weeks.

Highlights:Ravensthorpe farmers say pristine bush helps keep crops healthyThey expect a good harvest of flowers wild this year, after heavy winter rainsThe area will soon be celebrating its 40th annual wildflower festival

Outside, its canola crop is already blooming a bright yellow.

But the farmer on the south coast of Western Australia really lights up when talking about a much less showy plant sometimes seen in the area.

"The Queen of Sheba [Orchid]," he says.

"[You don't see it very often, but it's brilliant when you see one. The purple and gold colors are absolutely brilliant."

For Mr. Biddulph and his wife Jen, wildflowers are an integral part of the DNA of their culture and their sheep farming.

Orchi rare showy Queen of Sheba goddess

The orchid takes between seven and 10 years to flower.

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Just west of Ravensthorpe, their property borders the Fitzgerald River National Park, a biodiversity hotspot of internationally renowned.

"There are many thousands of species out there," Biddulph said.

"We have probably similar numbers here on the farm."

Each year the couple help supply the local wildflower show, sourcing a myriad of species from the 250 hectares of pristine bushland that remain on their property.

A strategic decision

After purchasing the 2,500ha property in the 1970s, Mr and Mrs Biddulph decided to leave many windbreaks.

true=" Spring is a busy time of year for the Biddulphs. (ABC Esperance: Emily Smith)

"Strategically, we left lines of streams and hilltops, rocky outcrops, which...