How to Fertilize Malva × clementii Ruby Star ('Jostar')?
Balanced perennial feed every four weeks from spring through summer

Malva × clementii Ruby Star ('Jostar') · Malva × clementii Ruby Star ('Jostar')
Thrives in light, moderately fertile, well drained soil in full sun; may need support if grown in richer soils (see staking perennials). Shelter from cold winds in areas prone to frosts. May die back to a woody base in cold winters
Balanced perennial feed every four weeks from spring through summer