Plant list R
Rhapis excelsa
Has survived for several years in a pot on a north facing patio, looks pretty rough though. Worth experimenting if you can find a cheap one and plant it in a shaded raised border.
Ricinus communis
Fast growing, large leaved plant. Easy from seed.
More about Ricinus...
R is for Ricinus communis 'New Zealand purple'
Rudbekia fulgida 'goldsturm'
Another plant for the fight against un-beneficial insects. Yellow daisies upon self supported stems. Easy from seed.
Rudbekia hirta 'moreno'
Too scruffy, too soon.
.