The balsam poplar (Populus balsamifera) is a native tree found only in northern Iowa.
Habitat: Grows in moist woodlands and woodland edges.
Hardiness: Zone 3
Mature Shape: Long straight trunk and narrow irregular crowns. They have a few large limbs, with branches that curve upward.
Height: 80-100 feet
Width: 4-10 feet
Site Requirements: Abundant soil moisture needed; High in nutrients, especially calcium and magnesium
Flowering Dates: April
Seed Dispersal Dates: May - July
Seed Bearing Age: 8-10 Years
Seed Bearing Frequency: Each year
Seed Stratification: Seeds disperse in the spring and immediately germinate. No stratification period is needed.