This included a nicely-written biography, gorgeous pictures, and quite a lot of information about the plants that Frances Hodgson Burnett grew in her various gardens.
There was a theme of how Mrs. Burnett worked very hard to earn a good income, and then enjoyed her earnings by spending them on fine clothes, travel, houses, and above all, gardens. I was happy to learn that she'd had a number of years during which she'd been able to indulge in the things that made her happy.
I first read The Secret Garden as a small child, and certainly liked the idea of a garden of roses and flower bulbs, and various other kinds of flowers. Now, many, many years later, and after the considerable efforts I've put into collecting Old Garden Roses and heirloom varieties of bulbs, I had the tools for critical analysis. Mrs. Burnett seemed to use the best roses available to her in the first couple of decades of the 20th century, and, in temperate climates, annual flowers that would bloom all summer. I just had the same experience of how the begonias I put in various shady spots around the yard bloomed all summer, and filled in the areas between small new shade perennials.
Not only the flower colors but the fragrances of the flowers were important to Burnett and her son Vivian. She mentions a few times in letters the fragrance of certain roses. I'm not personally familiar with much in the way of roses from the early part of the 20th century, but I've seen color pictures of them, and read descriptions of their forms and fragrances. She was able to grow China and Tea roses in Kent, which apparently has a mild climate. Mrs. Burnett also used roses such as 'Red Radiance.'
When she moved to Long Island, I get the impression that she needed plants that were a little hardier than those in her garden in England. But there were also quite a wide variety of garden plants available to her at that time. Mrs. Burnett also got a house in Bermuda, so she could avoid the cold weather and snow of a Mid-Atlantic state winter. I was jealous. :) She learned about tropical plants in Bermuda, and grew hibiscus and many other plants that do well in that climate. This included China and Tea roses again.
Alth0ugh Burnett didn't keep lists of her plants in the same way some gardeners do, the author made a list with documentation from her correspondence, and a note of which of the flowers were in the Secret Garden. Most of the list looked reasonable to me. I saw pear tree listed as a vine, so that was an error, but otherwise the list was informative.
The book went well with my interests, and I enjoyed it.