Catalpa Bignoides

Size: 800L
Sale price$5,000.00

Catalpa bignonioides (Southern Catalpa or Indian Bean Tree) is a fast-growing, deciduous tree with large heart-shaped leaves and striking white flowers marked with purple and yellow. It forms an upright, oval to pyramidal canopy that provides excellent shade and a lush, eye-catching presence in gardens, parks, and streetscapes.

They look excellent as a feature tree where bold foliage and seasonal floral display add character. This tree adapts well to urban conditions and various soils, combining low maintenance with good drought tolerance once established.

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About This Tree

Botanical Profile

Explore the essential characteristics and growth habits of this plant, curated to assist you in making an inspired and confident choice for your landscape.

Mature Height & Width

Mature Height

Mature Width:

6m – 12m

Expected Growth Pear Year

Approx. 60 – 100 cm per year

Evergreen/ Deciduous

Deciduous (Defoliates throughout colder months)

Frost Tolerance

Frost Hardy – Survives heavy and frequent frost without damage.

Sunlight Tolerance
  • Full Sun
Form & Shape

Catalpa Bignoides is considered:

  • Broad
  • Rounded
Australian Native?

No

Flowering Information

Flower Colour: White

Flower Type:

  • Bell-shaped

Flowering Period

Foliage Type / Shape
  • Broad

As Featured In

Here Is What Customers Like You Frequently Ask

FAQ

Q: What is the mature height of Catalpa bignonioides?
A: Southern Catalpa typically reaches a mature height of 12-18 meters with a width of 6-12 meters.

Q: Is Catalpa bignonioides drought-tolerant?
A: Yes, once established, this deciduous tree exhibits increased drought tolerance.

Q: What is the significance of the long slender seedpods on Southern Catalpa?
A: The distinctive seedpods are an interesting feature of this tree, often adding ornamental value to the landscape as they dangle from the branches.

About

Planting Guide

Plant Spacing

Hedging & Screening: Not suitable due to broad canopy.

Feature Tree: Space 4 m – 6 m apart to showcase its dramatic leaves and spreading shape.

Avenue Planting Trees: Plant 6 m – 8 m apart for bold avenue structure.

How to Plant Catalpa Bignoides

Select an Ideal Location: Choose a location with well-draining soil and access to full sun or partial shade.

Prepare the Soil: Ensure the soil is adequately prepared, free from weeds, and enriched with organic matter if needed.

Dig a Planting Hole: Dig a hole as deep as the root ball and 2-3 times as wide.

Position the Tree: Place Catalpa bignonioides in the hole, ensuring the top of the root ball is level with the surrounding soil.

Backfill with Soil: Fill the hole with soil, gently tamping it down to eliminate air pockets.

Water Thoroughly: Water the tree generously after planting to aid in soil settlement.

Root Ball Dimensions (Width × Depth) For Planting

Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.

  • 30cm Pot: 33cm (W) × 30cm (D)
  • 40cm/45L Pot: 44cm (W) × 41.5cm (D)
  • 50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
  • 100L Bag: 50.6cm (W) × 52.8cm (D)
  • 150L Bag: 66cm (W) × 55cm (D)
  • 200L Bag: 71.5cm (W) × 60.5cm (D)
  • 300L Bag: 88cm (W) × 63.8cm (D)
  • 400L Bag: 99cm (W) × 66cm (D)
  • 500L Bag: 122cm (W) × 66cm (D)
  • 750L Bag: 134cm (W) × 69cm (D)
  • 1000L Bag: 146.3cm (W) × 71.5cm (D)
  • 2000L Bag: 176cm (W) × 82.5cm (D)

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