How to Fertilize Erysimum 'Paint Box'?
Balanced perennial feed every four weeks from spring through summer

Erysimum 'Paint Box' · Erysimum 'Paint Box'
Grow in a sunny position in poor to moderately fertile, well-drained, neutral to alkaline soil. Usually grown as a biennial, plant out at the end of summer for flowers the following year
Balanced perennial feed every four weeks from spring through summer