How to Fertilize tree mallow 'Silver Cup'?
Fertilize with a balanced flower fertilizer every 3-4 weeks during bloom season.

tree mallow 'Silver Cup' · Malva trimestris 'Silver Cup'
Grow in a moderately fertile, well-drained soil in full sun, shelter from drying winds
Fertilize with a balanced flower fertilizer every 3-4 weeks during bloom season.