How to Fertilize sweet pea 'William Willson'?
High-potassium diluted feed biweekly from sprout stage to blooming end

sweet pea 'William Willson' · Lathyrus odoratus 'William Willson'
Grow in humus-rich, fertile, well-drained soil in full sun or light dappled shade. Incorporate well-rotted organic manure before planting and apply a balanced liquid fertilizer every two weeks when in growth. Deadhead regularly to prolong flowering. See sweetpea cultivation for further information
High-potassium diluted feed biweekly from sprout stage to blooming end