How to Fertilize Australian mountain ash?
Balanced perennial feed every four weeks from spring through summer

Australian mountain ash · Eucalyptus regnans
Also known as: Australian mountain oak; giant gum
Grows best in full sun and a mildly acidic, neutral, or mildly alkaline soil that is moist but well-drained. Able to withstand cold temperatures when mature, but shelter from cold, drying winds especially when young. See eucalyptus cultivation
Balanced perennial feed every four weeks from spring through summer