On of the first thing that I did when I started painting en plein air (on location) was to paint floral pieces. I read about the Kenilworth Gardens here in the Washington Area and began with their collection of tropical waterlilies. I thought well it was water subjects and still life floral, in addition to this I painted them as just the flower floating on a un-referenced perspective pond reflection, so the reflections of the neighboring trees created dark foils upon which to paint the flowers. This piece is the Victoria Amazonica, without any reference it is very difficult to comprehend the size I admit, but this plant grows 6 foot wide individual leaves with a single flower.
Created a new category to start the florals with this piece http://gallery.deborahchapin.com/victoria-amazonica-20×30-plein-air-oil-deborah-chapin/