Purple sweet potato for sale at the Parap Market, Darwin, NT

Purple sweet potato for sale at the Parap Market, Darwin, NT in March 2019

Building in Darling Harbour lit up at night in purple taken in Sydney

Building in Darling Harbour lit up at night in purple taken in September 2017

A masked mannequin in a shop window in Budapest, Hungary

A masked mannequin in a shop window in Budapest, Hungary, in January 2014

Beautiful purple flowers at Batemans Bay, NSW

Beautiful purple flowers at Batemans Bay, NSW in September 2013

Magnolia flowers in Orange, NSW

Magnolia flowers in Orange, NSW in September 2016

A beautiful magnolia tree in bloom in Orange, NSW

A beautiful magnolia tree in bloom in Orange, NSW in September 2016

Lots of tulips at the Floriade Flower show in Canberra

Tulips at the Floriade Flower show in Canberra in October 2016

A flower in Loei province, Thailand

A flower in Loei province, Thailand in June 2016

A beautiful purple orchid in the garden at the Legend Hotel, Chiang Rai, Thailand

A beautiful orchid in the garden at the Legend Hotel, Chiang Rai, Thailand in May 2016

A beautiful orchid in the garden at the Legend Hotel, Chiang Rai, Thailand

A beautiful orchid in the garden at the Legend Hotel, Chiang Rai, Thailand in May 2016

Daisies at Coogee Beach, Sydney

Daisies at Coogee Beach, Sydney in February 2016

Lovely purple flower at Tathra, NSW

Lovely purple flower at Tathra, NSW in October 2014

A daisy in Bruce, Canberra

A daisy in Bruce, Canberra in September 2015

Beautiful purple flowers in Bruce, Canberra

Beautiful purple flowers in Bruce, Canberra in September 2015

Agapanthus flowers at Milton, New South Wales

Agapanthus flowers at Milton, New South Wales in December 201

A Jacaranda tree at Milton, New South Wales

A Jacaranda tree at Milton, New South Wales in December 2012

A beautiful flower at Bhubing Palace, Chiang Mai, Thailand

A beautiful flower at Bhubing Palace, Chiang Mai, Thailand in September 2012

Flowers on a fence in front of a house in Brunswick Street, Fitzroy, Melbourne

Flowers on a fence in front of a house in Brunswick Street, Fitzroy, Melbourne in December 2014

Agapanthus flowers in Albury, New South Wales

Agapanthus flowers in Albury, New South Wales in December 2014

Purple flower at Penang Hill, Penang, Malaysia

Purple flower at Penang Hill, Penang, Malaysia in September 2012