How many kinds of sweet flowers grow
In an English country garden?
Daffodils, heart's ease and phlox
Meadowsweet and lady smocks
Gentian, lupin and tall hollyhocks
Roses, foxgloves, snowdrops, forget-me-nots
In an English country garden
The garden painting is by Helen Allingham 1848 - 1926 an English watercolour painter and illustrator of the Victorian era. She is particularly known for her paintings of pretty cottages and their gardens. Her paintings were an idealised picture of country life - the cottage gardens could not always have been filled with so many flowers or inhabited by pretty girls with nothing better to do than play with a kitten or wander amongst the chickens. The reality was much harsher, but she did attempt to record a way of life and a type of vernacular architecture that was disappearing even as she painted.
To answer Gina's question - Lady's Smock - a wildflower which grows in the meadows and gardens - botanical name Cardamine pratensis, and as Wendy pointed out - loved by the Orange Tip butterflies.