Does it need full sun?

It prefers partial shade, especially in hotter climates.

Can I grow it in a pot?

It can be kept in a large container of at least 20 gallons while young, but its large mature size means it does best planted in the ground in warm climates.

Plant guide

Ashoka tree.

Saraca asoca

Pronounced suh-RAH-kuh uh-SO-kuh

Also known as Ashoka, Ashoka tree, asoka-tree

Saraca asoca — Photo by sunnyjosef (CC BY) via gbif

The Ashoka tree is a beautiful tropical evergreen known for its fragrant, clustered flowers and dense, deep green foliage. It holds great cultural significance in its native range and makes a stunning ornamental specimen. It thrives in warm, humid environments with plenty of space to grow.

At a glance

Care level: Moderate
Plant type: Evergreen tree
Light: Partial shade to bright indirect light
Indoor light: Bright indirect
Water: Every 3 to 7 days
Mature size: 6 to 9 meters
Growth rate: Medium
Hardiness: USDA 10 to 12
Bloom time: Late winter to early spring

Care

Keep the soil consistently moist but never waterlogged to mimic its tropical habitat. Watch for yellowing leaves which often signal overwatering or poor drainage. Provide shelter from harsh, direct afternoon sun to prevent leaf scorch.

Watering: Keep the soil evenly moist throughout the growing season.
Feeding: Apply a balanced organic fertilizer during the active growing months.
Pruning: Prune lightly after flowering to maintain a tidy shape and remove dead wood.
Repotting: Repot only when the tree becomes root bound in its container.
Soil: Rich, well-draining, acidic loam
Soil pH: 5.5 to 6.5
Temperature: 15 to 35°C
Humidity: 60 to 90%
Drought tolerance: Low
Lifespan: Perennial, typically 30 to 50 years
Fragrance: Strong
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of the drainage holes
Water running straight through the pot without soaking in

Safety

People: The bark contains tannins and flavonoids that may cause irritation if ingested in large quantities.
Pets: There is no evidence suggesting this plant is toxic to cats or dogs.
Children: Keep children away from the seed pods as they can be a choking hazard.
Contact allergens: The sap may cause mild skin irritation in sensitive individuals.
Airborne allergens: The pollen is not typically considered a significant airborne allergen.
Edibility: The seeds are not considered edible and should be avoided.

How to identify it

Dense, evergreen, dark green canopy
Fragrant orange to red flower clusters
Pinnate leaves with lanceolate leaflets
Smooth, greyish brown bark
Pendulous, strap like seed pods

Height: 6 to 10m
Spread: 3 to 6m
Leaves: dark green, copper, evergreen
Flowers: orange, red, yellow, 1 to 2cm
Fruit: black, dark purple, Summer

Problems to watch for

AphidsCommon
Leaf SpotCommon
Root RotUncommon
Scale InsectsUncommon
Sooty MoldUncommon
ChlorosisRare

By symptom

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Growing it

Propagation: seed, cuttings
When to plant: Spring, Early rainy season
Overwintering: Move the container to a frost free location if you live in a cold climate, as it cannot tolerate freezing temperatures.
In containers: It grows well in large containers of at least 20 gallons, provided it is kept in a warm, humid environment.

Seed propagation

1. Collect fresh seeds from mature pods.
2. Soak seeds in warm water for 24 hours to soften the coat.
3. Plant in a well draining potting mix at a depth of 1 inch.
4. Keep the soil consistently moist and warm until germination occurs.

Plant in groups with other moisture loving tropicals to create a humid microclimate.

Grows well with

Gardenia · They share similar requirements for moisture and partial shade.
Ferns · Ferns provide a lush ground cover that helps retain soil moisture.

Similar species

Pride of Burma · It shares a similar growth habit and stunning floral display.

Science

Family: Fabaceae
Genus: Saraca
Order: Fabales
Class: Magnoliopsida
Native range: Indian subcontinent and parts of Southeast Asia.
Conservation: This species is considered vulnerable in the wild due to habitat loss and overharvesting for medicinal use.

It thrives in the moist, shaded understory of tropical evergreen forests.

Value to wildlife: nectar source
Pollinators: bees, butterflies
Uses: ornamental, temple planting, shade tree

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Soil reaction: 6/9
Temperature: 8/9
Moisture: 7/9
Salinity: 1/9
Light: 5/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need full sun?: It prefers partial shade, especially in hotter climates.
Can I grow it in a pot?: It can be kept in a large container of at least 20 gallons while young, but its large mature size means it does best planted in the ground in warm climates.

Where the name comes from

The name Asoca means without sorrow in Sanskrit. The genus name Saraca comes from the local name for the tree in its native range.

Good to know

It is often called the Sorrowless Tree.
The flowers are highly fragrant at night.
It is native to the Indian subcontinent.
The tree is frequently planted in temple gardens.

Also in

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.