Adding color to your green world.

摘要

This paper describes some perennial plant selections which offer great flower colour in spring (Euphorbia polychroma 'Bonfire' PP18585, Geum 'Totally Tangerine' PP22041, Amsonia 'Blue Ice'), summer (hardy Hibiscus, Gaillardia x grandiflora [G. aristata] Arizona Series, Gaillardia x grandiflora 'Mesa Yellow', Gaillardia x grandiflora Wheeler Series, Perovskia, Coreopsis verticillata 'Zagreb', Rudbeckia fulgida var. sullivantii 'Little Goldstar' PP22397, Physostegia virginiana 'Pink Manners' PPAF, Penstemon 'Dark Towers' PP20013) and autumn (Sedum taxa, Andropogon gerardii 'Indian Warrior' PPAF).