After her sister married in 1864 and her father lost his seat in parliament, the two spent even more time travelling, visiting Switzerland and the South Tyrol.
They travelled in Syria and along the Nile in 1865–67.
Her father became ill in the Alps in 1869, and she brought him back to Hastings, where he died.
She continued to paint as a way to assuage her grief.
After her father's death in 1869, she travelled and made paintings in Sicily.
In 1871–1872, she travelled to Canada, the United States and Jamaica, and spent a year in Brazil, where she did much of her work at a hut in the depths of a forest.
North was encouraged to visit South America by Frederic Edwin Church, whom she considered "the greatest of living landscape painters" and whose home in New York, Olana, she visited twice.
In 1875, after a few months in Tenerife, she began a journey round the world, and for two years painted the flora of California, Japan, Borneo, Java and Ceylon.
During her visits to California, she recorded her concern with the destruction of the redwoods.
She spent all of 1878 in various parts of India.

In 1878 The Graphic reported an exhibition of Marianne North's works at Kensington, in which 512 of her oil paintings were put on public display.
In a long article, the critic praised North for "her freedom of hand, the purity and brilliancy of colour and the accurate draughtsmanship of a consummate artist".

On her return to Britain, North exhibited a number of her drawings in London.
She offered to give the collection to the Royal Botanic Gardens at Kew, and to erect a gallery to house them.
This offer was accepted, and the new buildings, designed by James Fergusson, were begun that year.

At Charles Darwin's suggestion, North went to Australia in 1880, and for a year painted there and in New Zealand.
On her return, she presented Darwin the shrub 'Australian Sheep' (Raoulia eximia) as a gift and showed him her Australian pictures.
Her paintings of Banksia attenuata, B. grandis and B. robur were highly regarded.
Her gallery at Kew was opened in 1882.
On display for the opening of the gallery were 800 oil on cardboard paintings, which represented twenty years of North's life and travels.

In 1883, after a visit to South Africa, during which trip she called on the botanical artist Katharine Saunders, an additional room was opened at the Kew gallery, and in 1884–1885 North worked in the Seychelles and in Chile.
When ill-health curtailed her travelling she moved to Alderley, Gloucestershire where she died on 30 August 1890  and is buried in the local churchyard.
After her sister married in 1864 and her father lost his seat in parliament, the two spent even more time travelling, visiting Switzerland and the South Tyrol. They travelled in Syria and along the Nile in 1865–67. Her father became ill in the Alps in 1869, and she brought him back to Hastings, where he died. She continued to paint as a way to assuage her grief. After her father's death in 1869, she travelled and made paintings in Sicily. In 1871–1872, she travelled to Canada, the United States and Jamaica, and spent a year in Brazil, where she did much of her work at a hut in the depths of a forest. North was encouraged to visit South America by Frederic Edwin Church, whom she considered "the greatest of living landscape painters" and whose home in New York, Olana, she visited twice. In 1875, after a few months in Tenerife, she began a journey round the world, and for two years painted the flora of California, Japan, Borneo, Java and Ceylon. During her visits to California, she recorded her concern with the destruction of the redwoods. She spent all of 1878 in various parts of India.
In 1878 The Graphic reported an exhibition of Marianne North's works at Kensington, in which 512 of her oil paintings were put on public display. In a long article, the critic praised North for "her freedom of hand, the purity and brilliancy of colour and the accurate draughtsmanship of a consummate artist".
On her return to Britain, North exhibited a number of her drawings in London. She offered to give the collection to the Royal Botanic Gardens at Kew, and to erect a gallery to house them. This offer was accepted, and the new buildings, designed by James Fergusson, were begun that year.
At Charles Darwin's suggestion, North went to Australia in 1880, and for a year painted there and in New Zealand. On her return, she presented Darwin the shrub 'Australian Sheep' (Raoulia eximia) as a gift and showed him her Australian pictures. Her paintings of Banksia attenuata, B. grandis and B. robur were highly regarded. Her gallery at Kew was opened in 1882. On display for the opening of the gallery were 800 oil on cardboard paintings, which represented twenty years of North's life and travels.
In 1883, after a visit to South Africa, during which trip she called on the botanical artist Katharine Saunders, an additional room was opened at the Kew gallery, and in 1884–1885 North worked in the Seychelles and in Chile. When ill-health curtailed her travelling she moved to Alderley, Gloucestershire where she died on 30 August 1890  and is buried in the local churchyard.
Marianne North