Magnolia trees generally grow at a moderate rate, typically about 1 to 2 feet per year once established. However, their growth can be slower during the first few years as they focus on developing a strong root system
. Growth rates vary significantly depending on the species:
- Southern Magnolia (Magnolia grandiflora) grows more slowly, around 1 foot per year.
- Saucer Magnolia (Magnolia × soulangeana) and Star Magnolia (Magnolia stellata) tend to grow faster, sometimes up to 2 feet per year under ideal conditions
Environmental factors such as climate, soil quality, and care also influence growth. Magnolias prefer mild climates and well-drained soil, and with proper care, they can grow quickly, reaching heights of 20 feet or more in a few years
. Despite this, magnolias are often considered slow-growing compared to some other trees, sometimes taking 10-20 years to reach their full mature size
. In summary, expect magnolias to grow about 1 to 2 feet annually after establishment, with variation depending on species and conditions. Initial growth is slower as the tree develops roots, but with good care, they can become substantial trees within a decade or two.
