Malabar Nut (Justicia adhatoda)

Malabar Nut

Justicia adhatoda

Its lance-shaped leaves hold medicinal calm, a versatile evergreen shrub. Ornamental and medicinal; common names: Malabar Nut, Vasaka.

Partial sun
2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; tolerates partial shade; avoid harsh midday summer sun to prevent leaf scorch
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Watering Keep soil evenly moist but not waterlogged; allow top 1 cm of soil to dry between waterings to reduce root rot risk
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Temperature Thrives in 18–25℃; protect from frost below 10℃; avoid prolonged exposure to temperatures above 32℃
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Characteristics

  • Leaf: Lanceolate, glossy dark green, opposite arrangement, aromatic when crushed
  • Flower: White to pale pink tubular blooms in dense terminal spikes
  • Stem: Woody, branching, grayish-brown when mature
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Care Guide

Watering

Keep soil consistently moist; mist leaves 2–3 times weekly to boost humidity

Fertilization

Diluted balanced liquid feed every 2 weeks. Avoid over-fertilization to prevent leaf burn and excessive foliage growth

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to support flowering and foliage health
Pruning
  • Deadhead spent flower spikes to encourage continuous blooming
  • Trim overgrown branches in early spring to maintain compact shape
  • Remove yellowing or damaged leaves to improve airflow and reduce pest risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic; no known adverse effects

Humans: Non-toxic; used in traditional Ayurvedic medicine for respiratory support

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Garden Uses & Culture

Culture: Used in Ayurvedic medicine for respiratory and anti-inflammatory support; symbolizes healing in South Asian traditional practices

Usage: Ornamental garden shrub; medicinal herb for traditional remedies; cut flower arrangement filler