How to Fertilize Berlin poplar?
Balanced perennial feed every four weeks from spring through summer

Berlin poplar · Populus × berolinensis
Cultivated for their very rapid growth as specimen trees. Useful as windbreaks. Tolerant of any soil other than constantly waterlogged soils. Avoid growing within 40m of buildings as the vigorous root systems may damage drains and foundations, particularly on clay soils; has the potential to become a nuisance
Balanced perennial feed every four weeks from spring through summer