How to Fertilize Morison's meadow rue?
Mild balanced liquid fertilizer every three weeks active growth stage

Morison's meadow rue · Thalictrum morisonii
Grow in moist, humus-rich soil in partial shade; can tolerate a sunny position provided the soil remains moist. May require staking. See staking perennials for further advice.
Mild balanced liquid fertilizer every three weeks active growth stage