how fast do magnolia trees grow

Magnolia trees are generally slow to moderate growers, averaging about 1–2 feet (30–60 cm) per year once established , depending on the species and growing conditions.

Typical growth rate (short answer)

• Most magnolia trees grow 1–2 feet per year after they’ve settled in.

• They often grow more slowly in the first few years while putting energy into roots, then speed up a bit.

• Overall, they’re considered slow to moderate in growth compared with many ornamental trees.

By popular magnolia types

• Southern magnolia (Magnolia grandiflora)
  • Growth: about 1 foot per year on average once established, sometimes up to 1–2 feet in good conditions.

* Long‑term: can eventually reach **60–80+ feet tall** over many years in ideal climates.

• Saucer magnolia (Magnolia × soulangeana)
  • Growth: generally faster than Southern magnolia , often up to ~2 feet per year under good care.

* Reaches around **20–25 feet tall** at maturity.

• Star magnolia (Magnolia stellata)
  • Growth: slow to moderate , but often a bit quicker than Southern magnolia among the compact types.

* Typically tops out around **10–15 feet tall** for many cultivars.

Why your magnolia may seem “not growing”

Forum and arborist discussions often mention magnolias that sit almost the same height for years without dying. Common reasons include:

• Focusing on root development the first several years.
• Soil that’s too compact, poor drainage, or wrong pH.
• Too little water in the establishment phase or inconsistent watering.
• Planting too deep or with the root flare buried, which can stall growth.

In other words, a magnolia that “isn’t growing” for a few years can still be healthy and may take off later once roots are established.

How to help them grow closer to the “fast” end

To get nearer the 1–2 feet per year (or a bit more on some varieties), gardeners and tree-care guides recommend:

1. Right location
   • Full sun to light shade (ideally at least 6 hours of sun for many varieties).

 * Protection from strong, drying winds, which can damage leaves and buds.

2. Good soil and watering
   • Moist, well‑drained, slightly acidic soil with plenty of organic matter.

 * Regular deep watering during the first couple of years (about **1 inch per week** when rainfall is low).

3. Mulch and feeding
   • 2–3 inches of organic mulch over the root zone to keep moisture and temperature steady (but not piled against the trunk).

 * Light, balanced fertilizing after the first growing season, a couple of times per year, if soil is poor.

4. Gentle pruning only
   • Shape when young and remove dead or crossing branches, but avoid heavy cuts on mature trees since magnolias heal slowly.

A quick example timeline

If you plant a young magnolia sapling at 3–4 feet tall :

• Years 1–3: May only gain a few inches to 1 foot per year while roots establish.
• Years 4–10: More typical 1–2 feet per year , so it might reach 10–15 feet by around year 10, depending on variety and care.

Information gathered from public forums or data available on the internet and portrayed here.