About
Justicia adhatoda, the Malabar nut, is an evergreen shrub to 3 m with large, lance-shaped, dark-green, wrinkled leaves and dense, upright spikes of white, two-lipped flowers with purple veining in summer. Widely used in traditional medicine across South Asia. An ornamental and useful shrub for a sheltered, frost-free border or heated conservatory.
About the genus
Justicia are evergreen perennials and shrubs with simple leaves and spikes or clusters of tubular, two-lipped flowers, often with conspicuous bracts, in shades of red, orange, yellow, white or pink. Grown in heated conservatories and frost-free gardens.
Plant details
Suggested usesBorders, hedging, specimen planting.
Care notes
CultivationPlant in well-drained soil in sun or partial shade.
PruningPrune after flowering or in late winter for shape.
PropagationPropagate by division, cuttings, or seed as appropriate.
Pest resistanceGenerally pest-free. Monitor for common garden pests.
Disease resistanceGenerally disease-resistant. Ensure good air circulation.