The vibrant balls were created by a local crafting enthusiast known as Kitty Knitter to celebrate Wattle Day (September 1), and the first day of spring.

She has previously decorated parts of Sydney to commemorate the occasion before she moved to Bundanoon.

Kitty and her husband installed "the blaze of yellow" yesterday in the town.

"It has been amazing to wander around and see so many species of wattle growing in this town," she said.

The flower is the national emblem for Australia, and is considered a symbol of hope and patriotism.

According to a brief written by Rod Panter available in the Parliamentary Library, Wattle Day was first celebrated on September 1 in 1913 in Adelaide, Melbourne and Sydney.

The brief continued to state that it became a patriotic symbol throughout the First World War.

People sold wattle badges and shoots of the flower to raise funds for the Red Cross.

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Wattle was also placed inside war letters sent overseas, and was also given to servicemen and women when they returned home.

It became an occasion to raise funds but also foster a sense of community, where children participated in activities for the day at school.

Mr Panter's entry also mentioned that the tradition stopped in World War Two, and that the need for a national day came about decades later.

September 1 was officially declared as Wattle Day in 1992 across all states and territories.

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Kitty Knitter said that it was an "important day."

The crafter did help the Pom-Pom Fairies spread joy around the village in July, and wanted to bring "unexpected colour" back to the town.

The installation has already inspired plans for 2022.

"I wished I had 100 more," she laughed.

"It looked fantastic, but I would want to go bigger and better next year.

"Hopefully an installation has made people have a second look at nature."

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