Edgworthia chrysantha Plant Catalogue – Shrubs Back Edgworthia – Well-drained soil in full sun in a sheltered site, often grown as a conservatory plant. V E. chrysantha Fragrant, clusters of, yellow flowers gradually fade to white over a long period, February and March. Green leaves, deciduous. Height about 1.5 metres. Spread 1 to 1.2 metres.