tree

Indian Beech

Pongamia pinnata

The Story

Plant Bio

Millettia pinnata, widely known as the Indian beech, is a fast-growing, medium-sized evergreen tree with a broad, rounded, spreading canopy and a short trunk. The alternate, pinnately compound leaves consist of five to seven smooth, glossy, dark green leaflets that emerge with a tender, lighter bronze-green hue.

This species produces axillary racemes of fragrant, pea-like flowers in shades of white, pink, or purplish-lavender during spring. It is highly adaptable, tolerating saline and alkaline soils, coastal salt spray, and periodic flooding.

Uses & Benefits:

Ornamental UsesFeatures a broad, dense canopy of glossy green foliage and fragrant, pea-like spring flowers.
Practical UsesHighly tolerant of wind, salinity, and periodic flooding, making it useful for coastal erosion control.
Ecological BenefitsFixes atmospheric nitrogen to enrich the soil and provides shade and nesting cover for urban wildlife.

Essentials

At a Glance

Plant Type

Tree

Height

472"

Width

660"

Light

Full Sun, Partial Sun

Zones

10

Water

Low to Moderate

Humidity

High

Lifespan

Long

Native To

Asia and Australasia

Toxicity

Toxic to humans and livestock if ingested

Bloom period

Spring – Summer

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 6 months of the year

Planting

How to Grow

  1. Select a planting site in full sun to partial shade with ample room for the wide canopy and extensive root system.
  2. Dig a hole twice as wide as the root ball and of equal depth, placing the tree so the root flare sits level with the soil surface.
  3. Backfill with native soil and water deeply to settle the ground around the roots.
  4. Apply a layer of mulch around the base to retain moisture, keeping it several inches away from the trunk to prevent rot.

Pro Tip

Avoid planting near sidewalks or foundations, as the massive surface root system spreads aggressively and can disrupt nearby hardscaping.

Keep It Thriving

Care Guide

Do

  • Prune in late winter or early spring to shape the canopy and remove low-hanging branches.
  • Water regularly during the first growing season to establish a deep, resilient root system.
  • Wear gloves when handling pruned branches to avoid potential skin irritation from the sap.

Don't

  • Do not apply supplemental nitrogen fertilizers, as this legume fixes its own nitrogen.
  • Do not plant near waterways or natural areas where the water-dispersed seeds can escape and naturalize.
  • Do not perform severe, unneeded stubbing cuts when pruning.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Pest Check
Propagate
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shade TreeCoastal WindbreakErosion ControlReclamation Planting

Multiply

Propagation Methods

Good to Know

Common Questions

Indian Beech questions

What zones can Indian Beech grow in?

Indian Beech is hardy in USDA Zone 10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Indian Beech bloom?

Indian Beech typically blooms in spring through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Indian Beech need full sun?

Indian Beech does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Indian Beech drought tolerant?

Yes — once established (usually after the first full season), Indian Beech handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Explore the genus

Hardy in your zone?

Grow Indian Beech with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.