Her most recent solo exhibition (the third) was in November 2017. In 2018, after gaining two silver medals for the RHS some years earlier, she won a Royal Horticultural Society Gold Medal for paintings of Passion Flowers. One of these is the poster for an RHS exhibition of recent Gold Medal winners in summer 2019. She is a member of the Society of Botanical Artists, the Gloucestershire Society for Botanical Illustration, and, until its recent closure, the Society of Floral Artists, as well as The Wildlife Art Society International and her local art group at Bury Knowle in Oxford. She has also exhibited widely with the Alpine Garden Society and has a gold medal and bar for art from them. In July 2019 she will be exhibiting with the Royal Horticultural Society again, this time with a display on the fungi found in Oxfordshire and Berkshire, as well as in Oxford Art Week, the GSBI, and the SBA in the Mall Gallery in London in June 2019.
Caroline Jackson-Houlston has been painting botanical and wildlife subjects since she was a child. The first flower she remembers attempting was an anemone, at the age of 6, in her first and only painting lesson with her great uncle, Herbert Gardiner, a minor Pre-Raphaelite stained-glass window designer, enameller, and oil painter. Since she was six and he was ninety six there was some clash of expectations. She is largely self-taught. At the age of eleven she started painting wild flowers to illustrate her own botanical record books, and has not stopped since. This is partly because drawing is a useful tool to fix points of identification, but mainly because she enjoys it and wants to celebrate the natural world, and, hopefully, encourage others to delight in it and protect it. As well as botanical drawing, she paints plants and other living things (except people) both decoratively and in their environment.